Microstructure and mechanical performance of laser additive manufacturing Ni₅₀Ti₄₀Cu₁₀ and Ni₄₅Ti₄₀Cu₁₅ alloy

Abstract Ni-Ti-Cu alloy can not only prevent scale and biological adhesion, but also has applications in aerospace, automotive engineering, nanotechnology. In this study, Ni 50 Ti 40 Cu 10 45 15 large-size thin-walled parts are prepared on the surface of plates using laser additive manufacturing technology. The optimum operational parameters explored through a two-factor controlled variable method, based which effects TiC TiB 2 addition forming quality alloys further investigated. SEM, EDS, other testing methods used to determine microstructure composition distribution, physical phases alloy. Finally, tensile hardness tests carried out study mechanical properties results show that better for 1250w power 300 mm min −1 scanning speed. 0.6 wt% achieve parts. precipitates significantly more strengthening than have 20% higher strength 45.4% elongation compared average is 3.4% lower