热处理对粉末冶金Inconel 718合金TIG焊接的组织和性能的影响

赵云梅, 赵洪泽, 吴杰, 田晓生, 徐磊

Effect of Heat Treatment on Microstructure and Properties of TIG Welded Joints of Powder Metallurgy Inconel 718 Alloy

ZHAO Yunmei, ZHAO Hongze, WU Jie, TIAN Xiaosheng, XU Lei

表1 Inconel 718预合金粉末的化学成分(质量分数，%)

Table 1 Chemical compositions of Inconel 718 powder (%, mass fraction)

Element B C Al Si Ti Cr Fe Ni Nb Mo H O N Content 0.001 0.041 0.53 0.12 0.99 18.76 Bal 53.4 4.85 3.04 <0.0010 0.015 0.017