后续热处理对激光3D打印GH4099合金微观组织和高温力学性能的影响

赵亚楠, 郭乾应, 刘晨曦, 马宗青, 刘永长

Effects of Subsequent Heat Treatment on Microstructure and High-Temperature Mechanical Properties of Laser 3D Printed GH4099 Alloy

ZHAO Yanan, GUO Qianying, LIU Chenxi, MA Zongqing, LIU Yongchang

图2 LPBF制备GH4099合金及经S1和S2固溶热处理后的反极图，及不同状态下晶粒尺寸和硬度的变化

Fig.2 Inverse pole figures (IPFs) of GH4099 alloy sample fabricated by LPBF (a) and after S1 (b) and S2 (c) solution heat treatments, and the variations in the size of grains as well as the hardness with solution heat treatment (d) (BD—build direction)