选区激光熔化GH4169高温合金的微观组织和力学性能

孙勇飞, 向超, 张涛, 吴文伟, 邹志航, 刘金鹏, 孙桂芳, 蒲吉斌, 韩恩厚

Microstructures and Mechanical Properties of GH4169 Superalloy Manufactured by Selective Laser Melting

SUN Yongfei, XIANG Chao, ZHANG Tao, WU Wenwei, ZOU Zhihang, LIU Jinpeng, SUN Guifang, PU Jibin, HAN En-Hou

表3 GH4169高温合金AB、DA和SA试样的晶粒尺寸

Table 3 Grain size (intercept lengths) of GH4169 superalloy specimens in AB, DA, and SA states

Surface State Transverse size / μm Longitudinal size / μm Aspect ratio XOY AB 10.07 8.35 1.21 DA 11.87 9.34 1.27 SA 11.06 9.75 1.13 XOZ AB 9.69 16.66 0.58 DA 9.40 16.01 0.59 SA 11.03 19.71 0.56