K4169合金的高温低周疲劳行为
Low-cycle Fatigue Behavior of a Cast Ni-based Superalloy K4169 at 650oC
K4169合金的高温低周疲劳行为 |
| 刘庆澳, 张伟红, 王志远, 孙文儒 |
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Low-cycle Fatigue Behavior of a Cast Ni-based Superalloy K4169 at 650oC |
| LIU Qing'ao, ZHANG Weihong, WANG Zhiyuan, SUN Wenru |
| 图2 K4169合金热处理态的组织特征 |
| Fig.2 Microstructure characteristics of K4169 alloy after heat treatment (a) SEM images showing precipitates (b) BSE images showing precipitates; (c) Coarsening γ″ phase; (d) Low magnification morphology of alloy structure; (e, f) bright- and dark-field TEM images of γ″-Ni3Nb，respectively; (g) TEM images of δ-Ni3Nb (Inset in Fig.2 shows the corresponding SAED pattern) |
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