标题：A Short Review on the Microstructure, Transformation Behavior and Functional Properties of NiTi Shape Memory Alloys Fabricated by Selective Laser Melting
作者：Wang, Xiebin; Kustov, Sergey; Van Humbeeck, Jan
作者机构：[Wang, Xiebin] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jingshi Rd 17923, Jinan 250061, Shandong, Peoples R China.; 更多
通讯作者：Wang, XB;Wang, XB;Wang, Xiebin
通讯作者地址：[Wang, XB]Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jingshi Rd 17923, Jinan 250061, Shandong, Peoples R China;[Wang, 更多
关键词：shape memory alloys; NiTi; additive manufacturing; selective laser; melting; SLM; transformation behavior; functional properties
摘要：Due to unique functional and mechanical properties, NiTi shape memory alloys are one of the most promising metallic functional materials. However, the poor workability limits the extensive utilization of NiTi alloys as components of complex shapes. The emerging additive manufacturing techniques provide high degrees of freedom to fabricate complex structures. A freeform fabrication of complex structures by additive manufacturing combined with the unique functional properties (e.g., shape memory effect and superelasticity) provide great potential for material and structure design, and thus should lead to numerous applications. In this review, the unique microstructure that is generated by selective laser melting (SLM) is discussed first. Afterwards, the previously reported transformation behavior and mechanical properties of NiTi alloys produced under various SLM conditions are summarized.