Article
Nanoscience & Nanotechnology
T. Babinsky, I. Sulak, I. Kubena, J. Man, A. Weiser, E. Svabenska, L. Englert, S. Guth
Summary: This study investigates the thermomechanical fatigue behavior of additively manufactured metallic materials, specifically focusing on the 316L austenitic stainless steel. The findings highlight the crucial role of microstructural texture and the number of grain boundaries in determining the performance of these materials under different loading conditions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Review
Crystallography
Jingwei Zhao, Feng Qiu, Chuangang Xu
Summary: The present paper reviews the research on the creep-thermomechanical fatigue (CTMF) behaviors of austenitic stainless steel for nuclear power plant pipelines. The stress response behavior, main damage mechanisms, and the effects of strain dwell type, dwell time, and temperature-strain phase angle on fatigue life behavior are systematically discussed. It is emphasized that CTMF is closer to the actual service condition of nuclear power plant pipes, and the traditional design method based on isothermal fatigue test data is not conservative. The research on CTMF behaviors of austenitic stainless steel for nuclear power plant is summarized and prospected.
Article
Materials Science, Multidisciplinary
Peng Yin, Wei Zhang, Yi Zhang, Qiaofa Yang, Fei Liang, Le Chang, Changyu Zhou
Summary: The thermomechanical fatigue behavior of 316L was investigated by analyzing internal stress and microstructural characteristics at different cyclic stages. The results showed that cyclic stress response exhibited initial hardening followed by cyclic softening at high strain amplitudes, while continuous cyclic hardening was observed as the strain amplitude decreased. Out-of-phase TMF always resulted in cyclic softening regardless of strain amplitude. The contributions of back stress and friction stress to initial and subsequent cyclic hardening were highlighted. The hardening of back stress and friction stress was attributed to dislocation proliferation at grain boundaries and increased dislocation interactions within grains, respectively. The cyclic softening of friction stress was attributed to the annihilation of dislocations due to cross-slip. The hysteresis curves revealed that the intensity of dynamic strain aging depended on strain amplitude, loading history, and phase angle, which were related to cross-slip occurrence, solute atom diffusion rate, point defect density, and vacancy mobility. The effect of loading conditions on fracture behavior, including crack sources, secondary cracks, creep cavities, and oxidation damage, was demonstrated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Qingtong Wang, Bingbing Li, Jingwei Zhao, Takamoto Itoh, Xu Chen
Summary: Isothermal and thermomechanical fatigue tests were performed with different tension dwell times, and the cyclic stress response and stress relaxation behavior were analyzed using TEM and EBSD. The results showed that fatigue was the dominant mechanism for crack initiation and propagation in all creep-IF tests, leading to specimen fracture. However, in creep-TMF tests, when the dwell time increased to 1800 s, the dominant damage mechanism shifted to creep-fatigue interaction, resulting in intergranular fracture mode and a significantly shorter life. Additionally, a life prediction model based on tension strain energy was proposed.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
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)
Review
Chemistry, Physical
Andrea Avanzini
Summary: 316L stainless steel is the preferred material for applications that require a combination of mechanical strength and corrosion resistance, such as in the biomedical field. Additive Manufacturing (AM) technologies offer new design solutions, but the microstructure, defects, and surface characteristics of AM materials are different from traditional processing routes, making the evaluation of long-term durability crucial.
Article
Engineering, Mechanical
Fei Liang, Wei Zhang, Furen Chen, Peng Yin, Qiaofa Yang, Le Chang, Changyu Zhou
Summary: Experimental and modelling approaches were used to investigate the low cycle fatigue (LCF) and creep-fatigue interaction (CFI) behaviour of 316L stainless steel at 550 degrees C. The study found that friction and back stress contribute to the initial hardening stage, while friction is primarily responsible for the subsequent softening stage. The proposed viscoplastic constitutive model considers factors such as cycle-dependent plastic modulus, stress relaxation, non-masing, variable softening rate, and holding time-related effects, and accurately describes the cyclic features under both LCF and CFI.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Fanyu Zeng, Yongtai Yang, Guian Qian
Summary: This study investigates the fatigue properties of 316L stainless steel manufactured with selective laser melting technology and hot-isostatic-pressing heat-treatment. The results show that the resistance to high-stress fatigue fracture is significantly improved by using HIP heat-treatment.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Nanoscience & Nanotechnology
Mohammad Jamalkhani, Bradley Nathan, Mike Heim, Dave Nelson, Amir Mostafaei
Summary: The study investigated the influence of surface roughness on the high-cycle fatigue properties of vacuum sintered binder jetted gas atomized fine 316L stainless steel powder. The results showed that mechanical grinding can significantly improve the surface roughness and enhance the fatigue life. The study also revealed the relationship between residual stress and surface hardness on the mechanically ground samples.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
L. A. Avila Calderon, B. Rehmer, S. Schriever, A. Ulbricht, L. Agudo Jacome, K. Sommer, G. Mohr, B. Skrotzki, A. Evans
Summary: The study demonstrates that the creep properties of LPBF 316L exhibit low defect population and more extensive creep damage, primarily manifested as intergranular creep damage. Compared to conventionally manufactured 316L, LPBF 316L shows inferior creep performance.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Xuan Zhang, Christopher P. Carter, Yashas Satapathy, Aniket Tekawade, Jun-Sang Park, Peter Kenesei, Meimei Li
Summary: Compared to conventionally made specimens, additively manufactured 316L stainless steel exhibits lower creep resistance. The voids in a creep-ruptured additively manufactured 316L SS specimen and a conventionally ruptured specimen under the same testing condition were quantitatively characterized. The additively manufactured 316L SS contained more small creep voids and fewer large ones. 3D reconstructions showed that the spatial distribution of the small voids in the additively manufactured 316L SS followed the melt pool tracks, which was attributed to the unique grain structure of the laser process. These observations explained the creep behaviors of the two specimens.
MATERIALS RESEARCH LETTERS
(2023)
Article
Mechanics
Saveria Spiller, Sondre Olsoybakk Kolstad, Nima Razavi
Summary: The fatigue life of 316L components fabricated via MEAM is lower compared to wrought 316L, as internal defects from the deposition strategy result in observed crack initiation sites.
ENGINEERING FRACTURE MECHANICS
(2023)
Article
Engineering, Mechanical
Yiming Zheng, Bingbing Li, Jingwei Zhao, Caiming Liu, Takamoto Itoh, Xu Chen
Summary: Investigating fatigue crack growth behavior is crucial for the design and safety evaluation of engineering structures. In this study, a new thermomechanical fatigue (TMF) crack propagation testing method was developed for variable temperature conditions, and its validity was proven through a series of tests.
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
Cheng-Han Yu, Alexander Leicht, Ru Lin Peng, Johan Moverare
Summary: The study investigates the fatigue properties and dimensional limitations of as-built components by laser powder bed fusion. It explores the thin-wall effect, surface roughness impact on fatigue life, and differences in characteristics under various processing conditions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Mingxian Zhang, Chenxin Zhang, Huanchun Wu, Bin Yang
Summary: Grain boundary engineering treatment can optimize the grain boundary character distribution of 316L austenitic stainless steel and improve corrosion fatigue life. Under specific treatment conditions, a high proportion of special boundaries and interrupted network of high-angle grain boundaries can be obtained.
FRONTIERS IN MATERIALS
(2022)
Article
Chemistry, Medicinal
Koneni V. Sashidhara, Ram K. Modukuri, Seema Singh, K. Bhaskara Rao, G. Aruna Teja, Sampa Gupta, Shubha Shukla
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2015)
Article
Chemistry, Medicinal
Koneni V. Sashidhara, K. Bhaskara Rao, Pragati Kushwaha, Ram K. Modukuri, Pratiksha Singh, Isha Soni, P. K. Shukla, Sidharth Chopra, Mukesh Pasupuleti
ACS MEDICINAL CHEMISTRY LETTERS
(2015)
Article
Infectious Diseases
Anil Kumar Jaiswal, K. Bhaskara Rao, Pragati Kushwaha, Keerti Rawat, Ram K. Modukuri, Prashant Khare, Sumit Joshi, Shikha Mishra, Ambak Rai, Koneni V. Sashidhara, Anuradha Dube
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
(2016)
Article
Biochemistry & Molecular Biology
Koneni V. Sashidhara, K. Bhaskara Rao, Ravi Sonkar, Ram K. Modukuri, Yashpal S. Chhonker, Pragati Kushwaha, Hardik Chandasana, A. K. Khanna, Rabi S. Bhatta, Gitika Bhatia, Manish Kumar Suthar, Jitendra Kumar Saxena, Vikash Kumar, Mohammad Imran Siddiqi
Article
Materials Science, Multidisciplinary
Preeti Verma, Joysurya Basu, N. C. Santhi Srinivas, Vakil Singh
MATERIALS CHARACTERIZATION
(2017)
Article
Engineering, Multidisciplinary
R. S. Rajpurohit, N. C. Santhi Srinivas, S. R. Singh, V. Singh
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2018)
Article
Chemistry, Medicinal
Koneni V. Sashidhara, K. Bhaskara Rao, Seema Singh, Ram K. Modukuri, G. Aruna Teja, Hardik Chandasana, Shubha Shukla, Rabi S. Bhatta
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2014)
Article
Chemistry, Medicinal
Koneni V. Sashidhara, K. Bhaskara Rao, Vikas Kushwaha, Ram K. Modukuri, Richa Verma, P. K. Murthy
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2014)
Article
Engineering, Mechanical
G. S. Mahobia, Neeta Paulose, S. L. Mannan, R. G. Sudhakar, K. Chattopadhyay, N. C. Santhi Srinivas, Vakil Singh
INTERNATIONAL JOURNAL OF FATIGUE
(2014)
Article
Chemistry, Medicinal
Koneni V. Sashidhara, Ram K. Modukuri, Pooja Jadiya, K. Bhaskara Rao, Tanuj Sharma, Rizwanul Haque, Deependra Kumar Singh, Dibyendu Banerjee, Mohammad Imran Siddiqi, Aamir Nazir
ACS MEDICINAL CHEMISTRY LETTERS
(2014)
Article
Acoustics
Vaibhav Pandey, J. K. Singh, K. Chattopadhyaya, N. C. Santhi Srinivas, Vakil Singh
Article
Biochemistry & Molecular Biology
Ram K. Modukuri, Dharmendra Choudhary, Sampa Gupta, K. Bhaskara Rao, Sulekha Adhikary, Tanuj Sharma, Mohammad Imran Siddiqi, Ritu Trivedi, Koneni V. Sashidhara
BIOORGANIC & MEDICINAL CHEMISTRY
(2017)
Proceedings Paper
Engineering, Mechanical
A. Nagesha, R. Kannan, R. Sandhya, G. V. S. Sastry, M. D. Mathew, K. Bhanu Sankara Rao, Vakil Singh
6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION
(2013)
Proceedings Paper
Engineering, Mechanical
Rahul Garg, G. Sudhakar Rao, Vikash Bhartia, Vakil Singh
6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION
(2013)
Article
Agriculture, Multidisciplinary
R. S. Sisodia, Munna Lal, D. Ashok Vardhan, R. B. Singh, Asit Mandal, M. C. Manna, V. K. Singh, Brajendra
INDIAN JOURNAL OF AGRICULTURAL SCIENCES
(2013)
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)