增材制造高温合金在不同温度下的拉伸性能与变形机制

王娜, 李文彬, 庞建超, 陈立佳, 高崇, 邹成路, 张辉, 李守新, 张哲峰

Tensile Properties and Deformation Mechanism of Additive Manufacturing Superalloy at Different Temperatures

WANG Na, LI Wenbin, PANG Jianchao, CHEN Lijia, GAO Chong, ZOU Chenglu, ZHANG Hui, LI Shouxin, ZHANG Zhefeng

图2 热处理态SLM GH4169合金在不同构建方向的SEM图片和晶界处的短棒状δ相、晶内针状δ相、γ″、γ′相的形貌

Fig.2 SEM image of SLM GH4169 superalloy subjected to heat-treatment at different building directions and the morphology of precipitated phases of rod-shaped δ precipitates along grain boundary, needle-like δ precipitates and γ″, γ′ within grains (a) parallel to building direction; (b) perpendicular to building direction; (c) rod-shaped δ precipitates along grain boundary; (d) needle-like δ precipitates and γ″, γ′ within grains