退火工艺对304奥氏体不锈钢的组织演变及氢脆行为的影响
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张慧云, 郑留伟, 梁伟
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Effect of Annealing Process on Microstructure Evolution and Hydrogen Embrittlement Behavior of 304 Austenitic Stainless Steel
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ZHANG Huiyun, ZHENG Liuwei, LIANG Wei
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表2 冷轧态以及不同条件退火态304奥氏体不锈钢的性能对比
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Table 2 Comparisons of various performances of 304 austenitic stainless steel in different states
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| Sample | Yield strength / MPa | Tensile strength / MPa | Elongation / % | H content / mg·kg-1 | HE sensitivity / % |
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| CR-20% | 850 ± 7 | 1070 ± 15 | 32.0 ± 3.0 | 20.53 | 52.38 ± 1.5 | | 700 oC-1 min | 745 ± 8 | 960 ± 11 | 42.6 ± 2.3 | 10.66 | 13.61 ± 1.3 | | 700 oC-3 min | 720 ± 6 | 935 ± 13 | 43.5 ± 1.5 | 8.65 | 13.20 ± 0.8 | | 700 oC-5 min | 670 ± 4 | 930 ± 16 | 45.2 ± 2.7 | 7.49 | 11.68 ± 0.5 | | 700 oC-10 min | 645 ± 3 | 920 ± 14 | 49.6 ± 3.8 | 6.31 | 7.41 ± 0.4 | | 800 oC-10 min | 490 ± 9 | 900 ± 15 | 54.0 ± 2.6 | 3.62 | 6.94 ± 0.6 | | 900 oC-30 min | 250 ± 8 | 805 ± 12 | 67.7 ± 1.5 | 5.48 | 0.74 ± 0.1 | | 1000 oC-60 min | 215 ± 5 | 725 ± 10 | 73.3 ± 0.5 | 3.91 | 11.08 ± 0.9 |
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