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7 不同热处理制度处理后LPBF制备GH4099合金样品在900 ℃拉伸的应力-应变曲线及其与文献[16,39,43~45]报道的LPBF制备镍基高温合金在900 ℃下拉伸性能的比较

Fig.7 Stress-strain curves of GH4099 alloy samples fabricated by LPBF after different heat treatments tested at 900 oC (a) and comparisons of tensile properties at 900 oC between this work and those of LPBF fabricated nickel-based super-alloys reported in literatures [16,39,43-45] (b)