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

表1 激光粉末床熔融(LPBF)制备GH4099合金样品的热处理方案

Table 1 Heat treatment schemes of GH4099 alloy samples fabricated by laser powder bed fusion (LPBF)

No. Heat treatment scheme S1 1100 oC, 1 h, AC S2 1150 oC, 1.5 h, AC SA1-750 1100 oC, 1 h, AC, 750 oC, 8 h, AC SA1-800 1100 oC, 1 h, AC, 800 oC, 8 h, AC SA1-850 1100 oC, 1 h, AC, 850 oC, 8 h, AC SA2-750 1150 oC, 1.5 h, AC, 750 oC, 8 h, AC