粉末高温合金FGH4096的疲劳小裂纹扩展行为
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杨秦政, 杨晓光, 黄渭清, 石多奇
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Propagation Behaviors of Small Cracks in Powder Metallurgy Nickel-Based Superalloy FGH4096
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YANG Qinzheng, YANG Xiaoguang, HUANG Weiqing, SHI Duoqi
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表1 RH和RL试样中小裂纹的停滞情况
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Table 1 Stagnation of the small cracks in RH and RL specimens
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| Specimen No. | Stagnation site No. | Stagnation state | Consumed cycle | Microstructure in front of the crack tip |
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| RH | Left-1 (L1) | Fully | 4.0 × 103 | GB | | Left-2 (L2) | Fully | 3.8 × 103 | TB | | Right-1 (R1) | Temporarily | 4.0 × 103 | GB | | RL | Left-1 (L1) | Fully | 9.0 × 103 | GB | | Left-2 (L2) | Fully | 5.0 × 103 | TB | | Right-1 (R1) | Temporarily | 1.6 × 104 | GB | | Right-2 (R2) | Temporarily | 1.0× 104 | TB |
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