Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy
The residual stress greatly affects the mechanical behavior of a material. In this work, the effect of residual stress on the isothermal tensile behavior of NiTi shape memory alloy is studied. The focused ion beam (FIB) and digital image correlation (DIC) are combined to measure the two-dimensional...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424026140 |
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| author | Kai Yan Pengbo Wei Weifeng He Qingping Sun |
| author_facet | Kai Yan Pengbo Wei Weifeng He Qingping Sun |
| author_sort | Kai Yan |
| collection | DOAJ |
| description | The residual stress greatly affects the mechanical behavior of a material. In this work, the effect of residual stress on the isothermal tensile behavior of NiTi shape memory alloy is studied. The focused ion beam (FIB) and digital image correlation (DIC) are combined to measure the two-dimensional residual stress in nanocrystalline NiTi plates processed with prestrain laser shock peening. A four-point bending experiment is used to verify the accuracy of this measurement method. The results show that FIB-DIC method is an attractive tool for measuring the two-dimensional residual stress in nanocrystalline materials. It is shown that the internal residual stress can significantly reduce the phase transition stress, and the mechanism is studied via finite element and theoretical analyses. This work demonstrates that the mechanical behavior of NiTi shape memory alloys can be tailored via residual stress engineering. |
| format | Article |
| id | doaj-art-2fb1f2b990804273a6b268967b3bb47b |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-2fb1f2b990804273a6b268967b3bb47b2024-12-26T08:55:30ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013380258039Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloyKai Yan0Pengbo Wei1Weifeng He2Qingping Sun3Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China; Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region of China; Corresponding author. Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, Guangdong, China; Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region of ChinaState Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, 710049, China; Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi’an, 710038, ChinaDepartment of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region of China; Corresponding author.The residual stress greatly affects the mechanical behavior of a material. In this work, the effect of residual stress on the isothermal tensile behavior of NiTi shape memory alloy is studied. The focused ion beam (FIB) and digital image correlation (DIC) are combined to measure the two-dimensional residual stress in nanocrystalline NiTi plates processed with prestrain laser shock peening. A four-point bending experiment is used to verify the accuracy of this measurement method. The results show that FIB-DIC method is an attractive tool for measuring the two-dimensional residual stress in nanocrystalline materials. It is shown that the internal residual stress can significantly reduce the phase transition stress, and the mechanism is studied via finite element and theoretical analyses. This work demonstrates that the mechanical behavior of NiTi shape memory alloys can be tailored via residual stress engineering.http://www.sciencedirect.com/science/article/pii/S2238785424026140NiTi shape memory alloyResidual stressDigital image correlationFocused ion beamLaser shock peening |
| spellingShingle | Kai Yan Pengbo Wei Weifeng He Qingping Sun Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy Journal of Materials Research and Technology NiTi shape memory alloy Residual stress Digital image correlation Focused ion beam Laser shock peening |
| title | Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy |
| title_full | Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy |
| title_fullStr | Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy |
| title_full_unstemmed | Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy |
| title_short | Effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic NiTi shape memory alloy |
| title_sort | effects of residual stress on the isothermal tensile behavior of nanocrystalline superelastic niti shape memory alloy |
| topic | NiTi shape memory alloy Residual stress Digital image correlation Focused ion beam Laser shock peening |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424026140 |
| work_keys_str_mv | AT kaiyan effectsofresidualstressontheisothermaltensilebehaviorofnanocrystallinesuperelasticnitishapememoryalloy AT pengbowei effectsofresidualstressontheisothermaltensilebehaviorofnanocrystallinesuperelasticnitishapememoryalloy AT weifenghe effectsofresidualstressontheisothermaltensilebehaviorofnanocrystallinesuperelasticnitishapememoryalloy AT qingpingsun effectsofresidualstressontheisothermaltensilebehaviorofnanocrystallinesuperelasticnitishapememoryalloy |