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6 S1和S2热处理后LPBF制备GH4099合金样品的晶粒取向分布(GOS)图、晶粒GOS值统计图和晶界取向差分布图

Fig.6 Grain orientation spread (GOS) maps (a, b), GOS value statistics (c, d), and grain misorientation angle fractions (e, f) in the GH4099 alloy samples fabriated by LPBF after S1 (a, c, e) and S2 (b, d, f) heat treatments (LAGB—low angle grain boundary, TB—twin boundary)