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3 LPBF制备GH4099合金样品经S1和S2固溶热处理后晶界析出相的SEM像和EDX分析结果

Fig.3 SEM images and EDX analysis results (insets) of grain boundary precipitation phases in the GH4099 alloy samples fabricated by LPBF after S1 (a) and S2 (b) solution treatments (w—mass fraction, a—atomic fraction)