Article
Materials Science, Multidisciplinary
Dechun Ren, Lianmin Zhang, Yujing Liu, Haibin Ji, Shujun Li, Wei Jin, Jiafeng Lei
Summary: Hot isostatic pressing (HIP) can improve the mechanical properties and corrosion resistance of Ti-Ni alloys fabricated by selective laser melting (SLM) by mitigating internal defects. HIP treatment enhances the ultimate tensile strength, elongation to fracture, and corrosion resistance of SLM Ti-Ni alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Jung-Uk Lee, Young-Kyun Kim, Seong-Moon Seo, Kee-Ahn Lee
Summary: This study demonstrates that the CM247LC alloy manufactured using the L-PBF and SLM methods has excellent mechanical properties. The microstructure and mechanical properties of the SLM-built CM247LC alloy can be improved through HIP post treatment. The study also reveals that the defect characteristics of the alloy vary significantly with different scan speeds and hatch spaces, with the optimal microstructure achieved at an intermediate scan speed.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Yuting Lv, Yaojie Liu, Qiang Zhang, Hongyao Yu, Rui Wang, Guangbao Sun, Guijiang Wei
Summary: In this study, hot isostatic pressing (HIP) treatment was carried out on a TiC/GTD222 nickel-based composite prepared by selective laser melting (SLM). The results showed that HIP treatment could promote the formation of nanoscale carbides and gamma ' phase, and decrease the dislocation density of the composite, leading to significant improvements in yield strength and tensile strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Manufacturing
Xingchen Yan, Shujun Yue, Jinguo Ge, Chaoyue Chen, Rocco Lupoi, Shuo Yin
Summary: Ti6Al4V triply periodic minimal surface and trabecular lattices were manufactured using selective laser melting (SLM) and investigated after hot isostatic pressing (HIPing) treatment.The HIPing treatment had limited influence on pore elimination when the pore diameters were larger than 30μm. The microstructural anisotropy was effectively eliminated after HIPing and the energy absorption capacity significantly improved due to the transformation induced plasticity effect of alpha + beta laths formation. The fracture mechanism was altered from the brittle-dominated quasi-cleavage mode to ductility-dominated mode.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Chemistry, Physical
Qingbiao Tan, Guoliang Zhu, Wenzhe Zhou, Yusheng Tian, Liang Zhang, Anping Dong, Da Shu, Baode Sun
Summary: This study investigates the precipitation, transformation, and coarsening of carbides in a high-carbon nickel-based superalloy using various microscopic observation techniques and thermodynamic modeling. The results show that a high carbon content leads to the formation of complex carbides, which transform into a different type of carbides and undergo coarsening after treatment. In addition, carbide particles of different sizes are distributed along grain boundaries and subgrain boundaries, and they affect the mechanical properties of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Metallurgy & Metallurgical Engineering
Yuting Lv, Yaojie Liu, Rui Wang, Hongyao Yu, Zhongnan Bi, Guohao Liu, Guangbao Sun
Summary: The TiC/GTD222 nickel-based composite prepared through SLM and HIP processing exhibits a relatively low weight loss rate in a hot corrosion environment. The addition of alloying elements facilitates the formation of multiple protective oxide films rich in Al, Ti, and Cr, which enhances the material's resistance to hot corrosion. Additionally, the HIP treatment results in a reduction of grain size and an increased number of grain boundaries, promoting the formation of protective films.
ANTI-CORROSION METHODS AND MATERIALS
(2023)
Article
Materials Science, Ceramics
R. N. Maksimov, V. A. Shitov, V. V. Platonov, A. S. Yurovskikh, G. Toci, B. Patrizi, M. Vannini, A. Pirri
Summary: Yb3+-doped Lu2O3 nanoparticles produced by laser ablation were used to fabricate transparent ceramics through a combination of pressureless sintering in vacuum (PS) and hot isostatic pressing (HIPing), achieving high transmittance and ultrafine microstructure.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
D. Frazer, F. Teng, D. Murray, A. Pomo, A. Winston, J. Cole, J. F. Jue, J. Giglio
Summary: Considerable efforts are being made to develop and regulate low enriched fuels for research and test reactors worldwide. The United States is exploring plate-type fuels for higher power research and test reactors, which consist of metallic uranium-molybdenum foils with aluminum alloy cladding. Mechanical testing of the bond line in the aluminum alloy cladding was conducted to evaluate its strength and deformation behavior. The results showed that the microstructural features of the bond line did not affect the mechanical properties of the specimens.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Qi Shi, Feng Qin, Kefeng Li, Xin Liu, Ge Zhou
Summary: Selective laser melting fabricated 17-4PH stainless steel parts were subjected to solution and aging treatments conducted under vacuum and hot isostatic pressing (HIP) conditions. The microstructure of the samples were characterized, showing an improvement in relative density after HIP treatment. Mechanical testing results indicated that a simultaneous improvement of tensile strength and ductility could be obtained through solutionizing and aging treatments done in HIP, with a significant enhancement of tensile strength achieved by combining high pressure solutionizing and water cooling aging treatments.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Huei-Sen Wang, Yen-Ling Kuo, Hou-Guang Chen, Chen-Ming Kuo, Chao-Nan Wei, Hui-Yun Bor, Chih-Chun Hsieh
Summary: This study employed hot isostatic pressing to bond directionally solidified and fine equixed grain hybrid structured rods. The results showed that the bonded samples had improved strength after heat treatment, with decreased grain size and volume fraction of carbides and γ-γ' phase. The distribution of nano- or sub-micro-sized carbides within the matrix and grain boundaries inhibited fracture accumulation during tensile tests, resulting in fractures mainly occurring in the directionally solidified piece.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Manufacturing
Nekoda van de Werken, Pratik Koirala, Jafar Ghorbani, Derek Doyle, Mehran Tehrani
Summary: This study investigates the use of hot isostatic pressing (HIP) to post-process additively manufactured continuous carbon fiber reinforced polyetheretherketone (PEEK) composites to improve their mechanical properties. The research found that increasing the HIP treatment temperature can reduce void content but excessive crystallinity may decrease the composite properties. The study suggests that HIP is a fast and robust method to enhance the performance of AM composites, while caution should be taken to avoid excessive crystallization during post-processing.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Physical
Yuxuan Liu, Richu Wang, Chaoqun Peng, Zhiyong Cai, Zhaohui Zhou, Xiaogeng Li, Xuanyang Cao
Summary: In-situ TiB2/AlSi10Mg composites were prepared via casting, gas atomization, and selective laser melting (SLM), with SLMed samples showing a microstructure of fine grains and no texture. The composites exhibited excellent strength, hardness, and friction coefficient, outperforming the as-cast composite and SLMed AlSi10Mg alloy. The formation mechanism and strengthening effect of this unique structure were discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Youteng Duan, Wensheng Liu, Yunzhu Ma, Qingshan Cai, Wentan Zhu, Jie Li
Summary: This study investigates the effect of adding nickel powder on the hardenability, microstructure, and mechanical properties of 30CrMnSiNi2A steel. The results show that increasing the nickel content improves the strength of the steel and changes the microstructure. Additionally, the addition of nickel powder alters the fracture mode and enhances the durability of the steel.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Hailong Liao, Junjie Zhu, Shijie Chang, Gang Xue, Jingxi Pang, Haihong Zhu
Summary: Selective laser melting (SLM) is utilized to fabricate lunar regolith-AlSi10Mg composite successfully, with various metallurgical reactions and re-solidification observed. Specific parameters led to higher relative density and lunar regolith content, resulting in improved sample quality and compressive properties.
Article
Materials Science, Multidisciplinary
Hui Wang, Hong Wu, Yong Liu, Wenbin Qiu, Hao Deng, Lvjun Zhou, Longqing Chen
Summary: This study investigates the effects of microstructure on the high-temperature oxidation behavior and mechanical properties of Hastelloy X alloys. Experimental results show that a large number of microcracks exist in the samples prepared by selective laser melting (SLM) technique during oxidation at 900 degrees C. However, these cracks can be effectively eliminated with the assistance of hot isostatic pressing (HIP), resulting in improved oxidation resistance. This work provides valuable support for explaining the oxidation resistance and fracture mechanism of Hastelloy X superalloys in high-temperature service environments.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Crystallography
Yachao Wang, Jing Shi, Yang Liu
JOURNAL OF CRYSTAL GROWTH
(2019)
Article
Materials Science, Multidisciplinary
Yachao Wang, Jing Shi
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2019)
Article
Computer Science, Interdisciplinary Applications
Jiang Liu, Leiyang Huang, Yesong Wang, Yachao Wang, Jing Shi
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Yachao Wang, Jing Shi
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2020)
Review
Materials Science, Multidisciplinary
Jing Shi, Yachao Wang
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Engineering, Manufacturing
Roman Savinov, Yachao Wang, Jing Shi
JOURNAL OF MANUFACTURING PROCESSES
(2020)
Article
Materials Science, Multidisciplinary
Yachao Wang, Jing Shi
MATERIALS CHARACTERIZATION
(2020)
Article
Nanoscience & Nanotechnology
Yachao Wang, Jing Shi
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Chemistry, Physical
Yang Liu, Yachao Wang, Xin Wu, Jing Shi
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Composites
Yachao Wang, Jing Shi, Zhihui Liu
Summary: This study introduces an enhanced FFF-based approach for fiber reinforced composites by incorporating nanoparticles. The addition of GNP-NH2 significantly improves the bending strength and modulus, while the addition of CNTs or GNPs has less effect compared to GNP-NH2. mechanisms behind the findings are discussed based on matrix/fiber interfacial analysis.
JOURNAL OF COMPOSITE MATERIALS
(2021)
Article
Automation & Control Systems
Jin Wang, Yachao Wang, Jing Shi
Summary: This study investigates the microstructure and mechanical properties of Ti6Al4V parts produced by selective laser melting in the early stage of solid-state diffusion bonding. Higher diffusion temperature reduces voids on the bonding interface and improves mechanical properties of the joint. The joints consist of criss-cross acicular alpha ' martensitic structure, with the volume fraction of martensitic alpha ' decreasing with bonding temperature increase.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Yachao Wang, Jing Shi
JOURNAL OF MICRO AND NANO-MANUFACTURING
(2020)
Article
Engineering, Manufacturing
Zhihui Liu, Yachao Wang, Jing Shi
JOURNAL OF MICRO AND NANO-MANUFACTURING
(2019)
Proceedings Paper
Engineering, Manufacturing
Kuldeep Singh Sidhu, Yachao Wang, Jing Shi, Vijay K. Vasudevan, Seethe Ramaiah Mannava
PROCEEDINGS OF THE ASME 14TH INTERNATIONAL MANUFACTURING SCIENCE AND ENGINEERING CONFERENCE, 2019, VOL 2
(2019)
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)