K4169合金的高温低周疲劳行为

刘庆澳, 张伟红, 王志远, 孙文儒

Low-cycle Fatigue Behavior of a Cast Ni-based Superalloy K4169 at 650oC

LIU Qing'ao, ZHANG Weihong, WANG Zhiyuan, SUN Wenru

表1 析出相和基体的能谱 (EDS)

Table 1 Energy dispersive spectroscopy (EDS) results of precipitates and matrix (mass fraction, %)

Element (%) C Al Ti Cr Fe Ni Nb Mo MC 18.45 0.02 6.02 0.6 0.8 1.93 71.76 0.41 δ-Ni3Nb 4.01 0.51 1.4 14.83 14.07 49.34 12.76 3.07 γ-Ni - 0.27 1.26 18.98 17.32 54.74 4.85 2.57