Article
Nanoscience & Nanotechnology
Chao Wang, Xin Lin, Lilin Wang, Shuya Zhang, Weidong Huang
Summary: 316L stainless steel fabricated by selective laser melting (SLM) has excellent corrosion resistance and high strength at cryogenic temperature, attributed to its unique microstructure with columnar grain structure and intragranular cellular structure. The mechanical properties at low temperature indicate that horizontal specimens have slightly better performance compared to vertical specimens.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Yefeng Chen, Xiaowei Wang, Jiawei Shen, Yawei Peng, Yong Jiang, Xinyu Yang, Sean B. Leen, Jianming Gong
Summary: By conducting low cycle fatigue (LCF) tests on SLM 316L and traditional 316L, it has been found that SLM 316L exhibits stable cyclic softening behavior and higher fatigue life compared to traditional 316L. This is attributed to its higher strength as well as the coarsening of cellular sub-structure, evolution of geometrically necessary dislocations (GND), and influence of texture direction.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Optics
Yude Liu, Meng Zhang, Wentian Shi, Yingyi Ma, Jin Yang
Summary: The study increased the layer thickness and utilized a heat treatment process to improve the mechanical properties of specimens in the SLM process. By optimizing process parameters, different types of defects were identified and improvement methods were proposed.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Zahra Abbasi, Hamid Reza Abedi
Summary: This study investigates the hot deformation behavior and recrystallization mechanisms of selective laser melted 316L stainless steel. The results show that the development of substructures and continuous recrystallization are the main softening mechanisms during thermomechanical processing. The presence of cellular substructures facilitates recrystallization, and both discontinuous and geometric dynamic recrystallization contribute to the deformation process.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Ricardo Luiz Perez Teixeira, Jose Carlos de Lacerda, Kevinny Chaves Florencio, Sidney Nicodemos da Silva, Andreia Bicalho Henriques
Summary: This study aims to explore the effects of transformation-induced plasticity (TRIP) induced by cold rolling on AISI 316L grade ASTM F138: 2019, a biomedical material, and its compliance with ISO 5832. Cold rolling of 316L stainless steel is a cost-effective method that provides good surface finish and dimensional accuracy compared to other manufacturing processes. However, the TRIP effect in cold-worked 316L steel can lead to unwanted phases, limiting its use as a biomaterial. Understanding the TRIP effect through cold rolling can enhance its applicability in biomedical engineering.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Erica Marcelino Freitas de Souza Silva, Glaucio Soares da Fonseca, Elivelton Alves Ferreira
Summary: Austenitic stainless steels are widely used for their excellent mechanical and corrosive properties, with 316L ASS known for its great weldability due to low carbon content. Selective dissolution is a significant issue, primarily caused by the significant difference in electrochemical potential between different phases leading to severe austenite corrosion.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Jiapeng Sun, Qisheng Sun, Ying Liu, Bangjun Li, Zheng Zhang, Bingqian Xu, Songsong Xu, Ying Han, Yanxin Qiao, Jing Han, Guosong Wu, Paul K. Chu
Summary: The study investigates the use of ultrasonic severe surface rolling (USSR) to enhance the corrosion resistance of SLM 316L stainless steel, and finds that the USSR processed samples exhibit significant improvement in corrosion resistance, attributed to the unique gradient structure and chemically homogeneous and high-quality surface.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Mechanical
Hongqin Ding, Qing Tang, Yi Zhu, Chao Zhang, Huayong Yang
Summary: This study investigated the cavitation erosion behaviors of SLM-fabricated 316L stainless steel samples and the effects of different process parameters. The research found that samples with a columnar microstructure, few defects, and anisotropic build direction exhibited significantly lower cavitation damage. On the other hand, samples fabricated with low laser power and longer exposure time showed poor cavitation erosion resistance, emphasizing the importance of process optimization in SLM manufacturing.
Article
Engineering, Manufacturing
Ying Liu, Jiapeng Sun, Yantao Fu, Bingqian Xu, Bangjun Li, Songsong Xu, Peilong Huang, Jianing Cheng, Ying Han, Jing Han, Guosong Wu
Summary: The gradient heterogeneous structure (GHS) architecture is proposed to achieve superior strength and ductility combination in additively manufactured (AM) 316L stainless steel. The GHS system consists of a gradient structured outer layer with varying grain size and a hierarchically heterostructured interlayer with varying length scales. By combining two types of heterogeneous structures, the GHS strengthens the synergistic effect, resulting in high-performance AM parts with superior strength and ductility.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
A. Lescur, E. Stergar, J. Lim, S. Hertele, R. H. Petrov
Summary: MYRRHA is an accelerator driven system using liquid Lead-Bismuth eutectic alloy as a spallation target and coolant. Although nuclear grade austenitic stainless steels are selected as main candidate structural materials, some materials exhibit unexpectedly poor mechanical properties due to the presence of intermetallic a-phase. In-depth microstructural analysis is necessary to identify and address this issue in order to prevent misinterpretation of embrittlement in the austenitic matrix.
MATERIALS CHARACTERIZATION
(2021)
Article
Metallurgy & Metallurgical Engineering
Xin Yang, Wen-jun Ma, Yao-jia Ren, Shi-feng Liu, Yan Wang, Wan-lin Wang, Hui-ping Tang
Summary: The study showed that 316L stainless steel samples manufactured by SLM exhibit higher tensile strength and elongation, with subgrain structures and low-angle grain boundaries being contributing factors. Samples perpendicular to the building direction have higher room temperature tensile strength compared to those along the building direction, but lower elongation.
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jie Liu, Huajie Yang, Lingxiao Meng, Di Liu, Tianqi Xu, Daokui Xu, Xiaohong Shao, Chenwei Shao, Shujun Li, Peng Zhang, Zhefeng Zhang
Summary: The hydrogen embrittlement behavior of a selective laser-melted (SLM) 316L austenitic stainless steel was investigated through hydrogen charging experiments and slow strain rate tensile tests. The results showed that the ductility of the specimens was significantly reduced after electrochemical hydrogenation, while the strength only slightly decreased. Quasi in situ EBSD observation revealed an increased density of low angle grain boundaries in the samples after hydrogen charging. The presence of hydrogen-induced cracks along the melt pool boundaries indicated that these boundaries were the preferred areas for hydrogen accumulation and transfer.
Article
Materials Science, Multidisciplinary
Marina Odnobokova, Vladimir Torganchuk, Marina Tikhonova, Pavel Dolzhenko, Rustam Kaibyshev, Andrey Belyakov
Summary: This study investigates the developed microstructure and tensile behavior of a 316L-type steel produced by selective laser melting. It focuses on the density and arrangement of dislocations, internal distortions, and specific strengthening mechanisms in the steel. The experimental samples were obtained using a 3D selective laser melting system with specific parameters. The results show that the steel has a grain size of 20 μm, a high dislocation density, and a strong fiber texture. The tensile test reveals high yield strength, ultimate tensile strength, and elongation along the side direction. The strengthening mechanisms of solid solution and dislocations contribute to the outstanding strength-ductility combination of the processed steel.
Article
Nanoscience & Nanotechnology
Siqi Chen, Guoqiang Ma, Guilin Wu, Andrew Godfrey, Tianlin Huang, Xiaoxu Huang
Summary: The microstructure and chemical composition of 316L stainless steel prepared by selective laser melting were characterized. The study showed the presence of a multi-scale microstructure with equiaxed and columnar grains, dislocation cell blocks, individual dislocations, and nanosized particles. The misorientations across dislocation cells were determined, and the distribution of alloying elements and nitrogen content was also observed. The study found that dislocation strengthening and solid solution strengthening were the main contributing factors to the yield strength of the material.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Qingwen Zhou, Zhijun Zheng, Yan Gao
Summary: The influence of microstructure evolution during ageing on the corrosion behavior of deformed Super304H stainless steel was significant. Partial recrystallization formed uneven microstructure where the recrystallized coarse grains were selectively dissolved due to their inferior corrosion resistance compared to the residual nano-grains. Increased recrystallization region in the over-deformed state intensified the selective dissolution to a higher current peak.
Article
Engineering, Biomedical
Monika Rajput, Sagar Nilawar, Kaushik Chatterjee
Summary: Porous PLA scaffolds were prepared by fused filament fabrication, and a silk fibroin-alginate (SF/Alg) blend hydrogel loaded with hMSCs was loaded into the scaffold's pores. The gel-loaded PLA scaffolds showed stability, significant enhancement of hMSC proliferation and viability, and higher osteogenic differentiation. This combination offers a promising route for enhancing the bioactivity of 3D-printed PLA scaffolds.
REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE
(2023)
Article
Materials Science, Multidisciplinary
Madan Patnamsetty, Sumit Ghosh, Mahesh C. Somani, Pasi Peura
Summary: Isothermal compression tests were conducted on an Al0.3CoCrFeNi high-entropy alloy (HEA) to investigate the characteristics and kinetics of dynamic softening. The results revealed that discontinuous dynamic recrystallization (DRX) was the dominant microstructural reconstitution mechanism, and a kinetic model based on the Avrami-type function was established to predict the volume fraction of DRX. The experimental data supported the accuracy of the proposed model, and the micro-texture analysis showed different texture characteristics between recrystallized and unrecrystallized grains.
MATERIALS CHARACTERIZATION
(2023)
Article
Nanoscience & Nanotechnology
Tarek Allam, Mohammed Ali, Xiaofei Guo, Sumit Ghosh, Christian Haase, Matias Jaskari, Antti Jarvenpaa, Atef Hamada
Summary: This research focuses on the microstructure, mechanical properties, and resistance to hydrogen-assisted degradation of a medium manganese stainless steel. The results show that the steel exhibits high resistance to hydrogen-assisted degradation and excellent mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Pentti Kaikkonen, Sumit Ghosh, Mahesh Somani, Jukka Komi
Summary: The combined influence of primary martensite and low temperature ausforming on the microstructural evolution in medium C steels has not been clarified. Physical simulation experiments were conducted to assess the influence of ausforming on subsequent transformation behavior. Ausforming above the martensite start temperature accelerated bainite transformation kinetics and initiated strain-induced bainite/martensite formation. Ausforming below the martensite start temperature hindered bainite transformation onset but accelerated transformation rates.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Biophysics
Deepak Patil, Sushma Kumari, Kaushik Chatterjee
Summary: This study presents an innovative spin-coating setup to generate nanotopography on 3D-printed polymer scaffolds, which exhibit excellent bactericidal and osteogenic activities. The nanostructured PLA surface showed a high bactericidal effect on P. aeruginosa and S. aureus, while also supporting pre-osteoblast attachment and proliferation. This work has important implications for engineering next-generation 3D printed bioactive tissue scaffolds.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Atef Hamada, Ali Khosravifard, Sumit Ghosh, Matias Jaskari, Marion Kreins, Walaa Abd-Elaziem, Mohamed Wahba, Essam Ahmed, Tarek Allam
Summary: This study highlights the strengthening mechanisms observed during the metal joining of high-strength grade steels and provides insights into the microstructural features and mechanical strength evaluation. The results show that laser welding can induce fully martensitic structures and refined grains in the heat affected zone, leading to improved hardness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Atef Hamada, Ali Khosravifard, Mohammed Ali, Sumit Ghosh, Matias Jaskari, Mikko Hietala, Antti Jarvenpaa, Mohamed Newishy
Summary: This study laser-welded plates of low-alloyed ultra-high-strength carbon steel and 316L austenitic stainless steel at two different energy inputs. The microstructural characteristics and mechanical properties of the welded joints were examined and analyzed. The results showed that the dominant phase structures in the fusion zones were martensite with a small fraction of austenite, and the microhardness values varied between different zones.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Engineering, Mechanical
Oskari Haiko, Sakari Pallaspuro, Vahid Javaheri, Pentti Kaikkonen, Sumit Ghosh, Kati Valtonen, Antti Kaijalainen, Jukka Komi
Summary: Experimental steels with different microstructures were tested in high-stress abrasive conditions. The carbide-free bainitic (CFB) steel showed lower mass loss compared to the martensitic 500 HB steel. The direct-quenched and partitioned (DQP) steel had a higher initial hardness and outperformed the other steels. Wear surface characterization revealed significant work hardening in all steels but with different mechanisms. Transformation induced plasticity (TRIP) increased the hardness of DQP and CFB steels, while the martensitic 500 HB steel had more white layer formation on the wear surface resulting in increased hardness.
Article
Chemistry, Multidisciplinary
Snigdha Roy Barman, Pratik Gavit, Saswat Chowdhury, Kaushik Chatterjee, Amit Nain
Summary: Water pollution is a growing threat, and 3D printing technology shows promise in wastewater treatment. It allows for the fabrication of customized ultrathin membranes and various membrane components, highlighting its unique advantages and potential applications.
Article
Chemistry, Multidisciplinary
Sriram Bharath Gugulothu, Sonal Asthana, Shervanthi Homer-Vanniasinkam, Kaushik Chatterjee
Summary: Three-dimensional bioprinting technologies using photopolymerizable bioinks have gained significant attention for their ability to recreate complex structures with high resolution, mechanical stability, and suitable printing conditions for cell encapsulation. These technologies offer better understanding of tumor microenvironment and platforms for drug screening in cancer research.
Article
Chemistry, Physical
Parul Yadav, Rahul Shah, Anindo Roy, Sibani Jani, Kaushik Chatterjee, Deepak Kumar Saini
Summary: This study elucidates the role of scaffold architecture in the cellular senescence program, by observing the differences in cellular responses, it is found that three-dimensional scaffolds can significantly alter cell size and induce senescence compared to two-dimensional culture formats.
Article
Polymer Science
Deepak Patil, Vibhanshu Golia, Maya Overland, Marshall Stoller, Kaushik Chatterjee
Summary: This study demonstrates the fabrication of cicada wing-inspired nanotopography on nitrile surfaces using reactive ion etching. The etched surfaces effectively minimized bacterial colonization by inducing membrane damage.
Review
Materials Science, Biomaterials
Akshat Joshi, Saswat Choudhury, Sonal Asthana, Shervanthi Homer-Vanniasinkam, Uma Nambiar, Kaushik Chatterjee
Summary: The latest advancements in 4D fabrication techniques have proved beneficial in creating customized and self-fitting structures that can improve the treatment of nerve injuries. These techniques offer the potential for dynamic implants that can overcome the drawbacks of traditional approaches and improve patient outcomes.
BIOMATERIALS SCIENCE
(2023)
Article
Materials Science, Biomaterials
Sumit Ghosh, Sushma Indrakumar, Santanu Ghosh, Vasanth Gopal, Sagar Nilawar, Geetha Manivasagam, Jayanth S. Kesave, Satyam Suwas, Kaushik Chatterjee
Summary: This study investigates the effects of surface mechanical attrition treatment (SMAT) on 316L stainless steel implants fabricated by selective laser melting (SLM). The results show that SMAT can improve the corrosion resistance, wear resistance, and biological performance of the implants in in vitro and in vivo environments.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Physical
Anindo Roy, Deepak Patil, Prasad K. D. V. Yarlagadda, Kaushik Chatterjee
Summary: This study investigates the antibacterial and antibiofouling properties of bioinspired high aspect ratio nanostructures generated on poly(ethylene terephthalate) (PET) surfaces. The results show that these structures effectively neutralize Gram-negative bacterial contamination but are unable to inactivate Gram-positive cells. The clustering of the soft, flexible tall nanopillars enhances the stiffness of the structures, and external capillary forces improve the killing efficiency. Additionally, experimental and computational investigations demonstrate the durability of the nanostructured surfaces against daily life forces.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)