TiAl基合金与GH3039合金摩擦-扩散双重焊焊合区过渡相的形成、结构与原位开裂

杜随更, 王松林, 胡弘毅

Formation, Structure, and In Situ Cracking of Intermediate Phases in the Friction-Diffusion Double Welding Zone Between TiAl-Based Alloy and GH3039 Alloy

DU Suigeng, WANG Songlin, HU Hongyi

图2 Ti、Al、Ni合金元素相关相图：Al-Ni-Ti三元相图700℃等温截面图[14]及Ti-Al二元相图[15]

Fig.2 Phase diagrams of Ti, Al, and Ni alloy elements (a) isothermal section of the ternary system Al-Ni-Ti at 700oC[14] (b) Ti-Al binary phase diagram[15] (1d-APS: (Ti5Al11, Ti2Al5) four sided superstructure; TiAl3(h): D022 structure; TiAl3(l): Ti8Al24 structure)