Annealing of selective laser melted NiTi shape memory alloy
Coupled with the poor manufacturability of nickel titanium (NiTi) and the limitations of conventional technologies, the majority of the produced NiTi parts have simple geometries. This limits the applicability of NiTi, despite it having exceptional functional properties. Hence, Selective Laser Melti...
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sg-ntu-dr.10356-886922020-09-24T20:11:26Z Annealing of selective laser melted NiTi shape memory alloy Khoo, Zhong Xun Chua, Chee Kai An, Jia Liu, Yong Lee, Dennis Ying Le School of Mechanical and Aerospace Engineering Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018) Singapore Centre for 3D Printing DRNTU::Engineering::Mechanical engineering::Prototyping 3D Printing 4D Printing, Coupled with the poor manufacturability of nickel titanium (NiTi) and the limitations of conventional technologies, the majority of the produced NiTi parts have simple geometries. This limits the applicability of NiTi, despite it having exceptional functional properties. Hence, Selective Laser Melting (SLM) has been proposed as an alternative method in fabricating complex NiTi structures. In the prior work, repetitive scanning has been utilised to produce high-quality samples. Nevertheless, its shape recovery response can still be further improved. Therefore, in this paper, rapid annealing was introduced to enhance its shape memory properties. It was observed that annealing at 400 °C for a period of 5 minutes produced samples with higher percentages of shape recovery and transformation strain than the non-annealed samples. Published version 2018-09-11T09:05:59Z 2019-12-06T17:08:57Z 2018-09-11T09:05:59Z 2019-12-06T17:08:57Z 2018 Conference Paper Khoo, Z. X., Lee, D. Y. L., An, J., Chua, C. K., & Liu, Y. (2018). Annealing of selective laser melted NiTi shape memory alloy. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 445-450. doi:10.25341/D40W2H https://hdl.handle.net/10356/88692 http://hdl.handle.net/10220/45958 10.25341/D40W2H en © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore. 6 p. application/pdf |
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DRNTU::Engineering::Mechanical engineering::Prototyping 3D Printing 4D Printing, Khoo, Zhong Xun Chua, Chee Kai An, Jia Liu, Yong Lee, Dennis Ying Le Annealing of selective laser melted NiTi shape memory alloy |
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Coupled with the poor manufacturability of nickel titanium (NiTi) and the limitations of conventional technologies, the majority of the produced NiTi parts have simple geometries. This limits the applicability of NiTi, despite it having exceptional functional properties. Hence, Selective Laser Melting (SLM) has been proposed as an alternative method in fabricating complex NiTi structures. In the prior work, repetitive scanning has been utilised to produce high-quality samples. Nevertheless, its shape recovery response can still be further improved. Therefore, in this paper, rapid annealing was introduced to enhance its shape memory properties. It was observed that annealing at 400 °C for a period of 5 minutes produced samples with higher percentages of shape recovery and transformation strain than the non-annealed samples. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Khoo, Zhong Xun Chua, Chee Kai An, Jia Liu, Yong Lee, Dennis Ying Le |
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Conference or Workshop Item |
author |
Khoo, Zhong Xun Chua, Chee Kai An, Jia Liu, Yong Lee, Dennis Ying Le |
author_sort |
Khoo, Zhong Xun |
title |
Annealing of selective laser melted NiTi shape memory alloy |
title_short |
Annealing of selective laser melted NiTi shape memory alloy |
title_full |
Annealing of selective laser melted NiTi shape memory alloy |
title_fullStr |
Annealing of selective laser melted NiTi shape memory alloy |
title_full_unstemmed |
Annealing of selective laser melted NiTi shape memory alloy |
title_sort |
annealing of selective laser melted niti shape memory alloy |
publishDate |
2018 |
url |
https://hdl.handle.net/10356/88692 http://hdl.handle.net/10220/45958 |
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1681056900832034816 |