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

Authors

Jun Wang, University of WollongongFollow
Zengxi Stephen Pan, University of WollongongFollow
Guangsai Yang, University of WollongongFollow
Jian Han, Tianjin University of TechnologyFollow
Xizhang Chen, Wenzhou University
Hui Jun Li, University of WollongongFollow

RIS ID

133388

Publication Details

Wang, J., Pan, Z., Yang, G., Han, J., Chen, X. & Li, H. (2019). Location dependence of microstructure, phase transformation temperature and mechanical properties on Ni-rich NiTi alloy fabricated by wire arc additive manufacturing. Journal of Materials Science and Engineering A, 749 218-222.

Abstract

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 Ni 4 Ti 3 but decreased amount of Ni 3 Ti from lower to upper region leads to obviously decreasing transformation temperature, increasing hardness and tensile strength but reduced ductility.