选区激光熔化<strong>GH4169</strong>高温合金的微观组织和力学性能

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

图13 AB、DA、SA试样基体和Laves相的TEM明场像及其SAED花样

Fig.13 TEM bright-field images of matrix and Laves phase, and corresponding SAED patterns of the circle areas (insets) of samples
(a-f) γ matrix bright-field image (a) and SAED patterns with [100] axis (b) and [110] axis (c); Laves phase bright-field image (d) and SAED patterns with [10

\bar{1}

0] axis (e) and [11

\bar{2}

0] axis (f) of sample in AB state (g-j) γ matrix bright-field images under [100] axis (g) and [110] axis (i), and corresponding SAED patterns (h, j) of sample in DA state (k-o) γ matrix bright-field image under [100] axis (k) and SAED pattern (l), intragranular γ matrix bright-field image under [110] axis (m) and SAED pattern (n), and grain boundary γ matrix bright-field image under [110] axis (o) and SAED pattern (p) of sample in SA state