焊接热循环及时效处理对一种Ni-Fe基高温合金的组织和力学性能的影响*
吴栋, 王鑫, 董文超, 陆善平

EFFECTS OF WELDING THERMAL CYCLE AND AGING TREATMENT ON THE MICROSTRUCTURE AND MECHANICAL PROPERTY OF A Ni-Fe BASE SUPERALLOY
WU Dong, WANG Xin, DONG Wenchao, LU Shanping
表1 固溶态和焊接热循环态下的晶粒尺寸
Table 1 Grain size distribution of Ni-Fe superalloy at solution state and welding thermal cycle state
Sample Area percentage of grains with
different sizes
Number percentage of grains with
different sizes
Solution state
75~100 μm, 91.5%;
less than 20 μm, 8.5%
75~100 μm, 43%;
less than 20 μm, 57%
Welding thermal cycle state 75~100 μm, 94.6%;
less than 20 μm, 5.4%
75~100 μm, 54.3%;
less than 20 μm, 45.7%