Functionally graded NiTi shape memory alloy: selective laser melting fabrication and multi-scale characterization

2021 ◽  
pp. 129648
Author(s):  
Mohammadreza Nematollahi ◽  
Keyvan Safaei ◽  
Parisa Bayati ◽  
Mohammad Elahinia
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Selective Laser Melting ◽  
Functionally Graded ◽  
Niti Shape Memory Alloy ◽  
Laser Melting ◽  
Multi Scale ◽  
Scale Characterization

The fabrication of NiTi shape memory alloy by selective laser melting: a review

2019 ◽  
Vol 25 (8) ◽  
pp. 1421-1432 ◽  
Author(s):  
Xizhang Chen ◽  
Kun Liu ◽  
Wei Guo ◽  
Namrata Gangil ◽  
Arshad Noor Siddiquee ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Selective Laser Melting ◽  
Process Analysis ◽  
Research Direction ◽  
Process Equipment ◽  
Niti Shape Memory Alloy ◽  
Laser Melting ◽  
Content Type ◽  
Niti Sma

Purpose In recent years, the use of high performing materials, and application of additive manufacturing technology for industrial production has witnessed a steady rise and its expanse is only to increase in the future. “Selective laser melting (SLM) technique” for an exotic nickel-titanium (NiTi) shape memory alloy (SMA) is expected to a great facilitator to research in this area. The purpose of this paper is to put forth the research direction of NiTi shape memory alloy by selective laser melting. Design/methodology/approach This review also summaries and skims out the information on process equipment, adopted methodologies/strategies, effects of process parameters on important responses e.g. microstructure and comprehensive functional and mechanical properties of SLM-NiTi. In particular, the functional characteristics (i.e. shape memory effects and super-elasticity behavior), process analysis and application status are discussed. Findings Current progresses and challenges in fabricating NiTi-SMA of SLM technology are presented. Practical implications This review is a useful tool for professional and researchers with an interest in the field of SLM of NiTi-SMA. Originality/value This review provides a comprehensive review of the publications related to the SLM techniques of NiTi-SMA while highlighting current challenges and methods of solving them.

Study on the junction zone of NiTi shape memory alloy produced by selective laser melting via a stripe scanning strategy

2020 ◽  
Vol 126 ◽  
pp. 106947
Author(s):  
Wenqian Guo ◽  
Zhen Sun ◽  
Ying Yang ◽  
Xiebin Wang ◽  
Zhiwei Xiong ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Selective Laser Melting ◽  
Niti Shape Memory Alloy ◽  
Junction Zone ◽  
Laser Melting ◽  
Scanning Strategy

Selective Laser Melting of NiTi Shape Memory Alloy: Processability, Microstructure, and Superelasticity

2020 ◽  
Vol 6 (3) ◽  
pp. 342-353
Author(s):  
Carlo Alberto Biffi ◽  
Jacopo Fiocchi ◽  
Fabrizio Valenza ◽  
Paola Bassani ◽  
Ausonio Tuissi
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Selective Laser Melting ◽  
Niti Shape Memory Alloy ◽  
Laser Melting
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