Location dependence of microstructure, phase transformation temperature and mechanical properties on Ni-rich NiTi alloy fabricated by wire arc additive manufacturing

被引：99

作者：

Wang, Jun ^{[1
]}

Pan, Zengxi ^{[1
]}

Yang, Guangsai ^{[2
]}

Han, Jian ^{[3
]}

Chen, Xizhang ^{[4
]}

Li, Huijun ^{[1
]}

机构：

[1] Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Northfield Ave, Wollongong, NSW 2522, Australia

[2] Univ Wollongong, Inst Superconducting & Elect Mat, Innovat Campus, Wollongong, NSW 2522, Australia

[3] Tianjin Univ Technol, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China

[4] Wenzhou Univ, Sch Mech & Elect Engn, Wenzhou 325035, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 749卷

关键词：

WAAM; Ni-rich NiTi alloy; Microstructure; Phase transformation; Mechanical properties; SHAPE-MEMORY ALLOYS; SUPERELASTICITY; BEHAVIOR; HARDNESS;

D O I：

10.1016/j.msea.2019.02.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ni-rich NiTi alloy was successfully fabricated for the first time using wire arc additive manufacturing (WAAM) technique. The distinct anisotropic microstructure with increased amount of Ni4Ti3 but decreased amount of Ni3Ti from lower to upper region leads to obviously decreasing transformation temperature, increasing hardness and tensile strength but reduced ductility.

引用

页码：218 / 222

页数：5

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