Surface modification of TC4 Ti alloy by laser cladding with Ni-Ti-Nb powders Yiming Tian, Chengxin Lin, Jie Yu, Zhijie Liu, Yu Zhang and Songjiang Jia MATEC Web Conf., 189 (2018) 01004 Published online: 10 August 2018 DOI: 10.1051/matecconf/201818901004