Ta含量对镍基粉末高温合金高温蠕变变形行为和性能的影响

杨志昆, 王浩, 张义文, 胡本芙

Effect of Ta Content on High Temperature Creep Deformation Behaviors and Properties of PM Nickel Base Superalloys

YANG Zhikun, WANG Hao, ZHANG Yiwen, HU Benfu

表1 合金的层错宽度和层错能

Table 1 Stacking fault widths (d) and sacking fault energies (γSF) of PM nickel base superalloys

Alloy d / nm γSF / (mJ·m-2) 0%Ta 6.03 36.44 1.2%Ta 6.51 33.75 2.4%Ta 10.40 21.13 3.6%Ta 12.70 17.30 4.8%Ta 13.49 16.28