选区激光熔化成形<strong>Al-Si-Fe-Mn-Ni</strong>合金的高温蠕变行为

选区激光熔化成形Al-Si-Fe-Mn-Ni合金的高温蠕变行为

韩英, 吴雨航, 赵春禄, 张靖实, 李振民, 冉旭

High-Temperature Creep Behavior of Selective Laser Melting Manufactured Al-Si-Fe-Mn-Ni Alloy

HAN Ying, WU Yuhang, ZHAO Chunlu, ZHANG Jingshi, LI Zhenmin, RAN Xu

图8 SLM成形Al-Si-Fe-Mn-Ni合金在温度400 ℃、应力60 MPa条件下蠕变后断口附近的TEM像

Fig.8 TEM images of the deformed microstructure near the fracture of SLMed Al-Si-Fe-Mn-Ni alloy after creeping under conditions of 400 ^oC and 60 MPa (White arrows represent dislocations, blue arrows represent Si phases, green arrows represent Al₁₅(Fe, Mn, Ni)₃Si₂)
(a) BF image
(b) interaction behavior of IMCs and dispersed Si phases with dislocation and corresponding EDS results
(c) high-magnification morphology of IMC and Si phase
(d) SAED results of IMC and Si phase
(e) HRTEM image of the dispersed Si phase