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Title: A Review of Selective Laser Melted NiTi Shape Memory Alloy
Authors: Khoo, Zhong Xun
Liu, Yong
An, Jia
Chua, Chee Kai
Shen, Yu Fang
Kuo, Che Nan
Keywords: 3D Printing
4D Printing
Issue Date: 2018
Source: Khoo, Z. X., Liu, Y., An, J., Chua, C. K., Shen, Y. F., & Kuo, C. N. (2018). A Review of Selective Laser Melted NiTi Shape Memory Alloy. Materials, 11(4), 519-.
Series/Report no.: Materials
Abstract: NiTi shape memory alloys (SMAs) have the best combination of properties among the different SMAs. However, the limitations of conventional manufacturing processes and the poor manufacturability of NiTi have critically limited its full potential applicability. Thus, additive manufacturing, commonly known as 3D printing, has the potential to be a solution in fabricating complex NiTi smart structures. Recently, a number of studies on Selective Laser Melting (SLM) of NiTi were conducted to explore the various aspects of SLM-produced NiTi. Compared to producing conventional metals through the SLM process, the fabrication of NiTi SMA is much more challenging. Not only do the produced parts require a high density that leads to good mechanical properties, strict composition control is needed as well for the SLM NiTi to possess suitable phase transformation characteristics. Additionally, obtaining a good shape memory effect from the SLM NiTi samples is another challenging task that requires further understanding. This paper presents the results of the effects of energy density and SLM process parameters on the properties of SLM NiTi. Its shape memory properties and potential applications were then reviewed and discussed.
ISSN: 1996-1944
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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