| 氢对低合金钢上不锈钢堆焊层性能的影响(英文) |
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| 引用本文： | 徐坚,D.HARDIE,钟曼英.氢对低合金钢上不锈钢堆焊层性能的影响(英文)[J].中国计量学院学报,2000,11(1):16-21. |
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| 作者姓名： | 徐坚 D.HARDIE 钟曼英 |
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| 作者单位： | 1. 中国计量学院,机械电子系,浙江,杭州,310034
2. 纽卡斯尔大学机械、材料与制造工程系,纽卡斯尔,NE1 7RU,英国 |
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| 基金项目： | The project supported by Zhejiang provincial Natural Science Foundation of China!( 5 980 2 3 ) |
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| 摘 要： | 本工作研究了高温高压氢 (35 0℃ ,2 5 MPa H2 ) ,对国产氢反应器壁 30 9L 和 34 7L 不锈钢堆焊层性能的影响 .结果表明 :未经热渗氢的原始试样 ,无论是光滑试样还是缺口试样 (除缺口开在 30 9L 区域试样外 ) ,均断裂在 34 7L 区域内 .而经热渗氢后 ,无论起裂于 2 (1/4 ) Cr- 1Mo和 30 9L 熔合线 ,还是 30 9L 和34 7L的熔合线处 ,最后都断在 30 9L区域内 .这是因为热渗氢使 30 9L和 34 7L的断裂应力 ,分别从 885 MPa降至 478MPa和从 799.9MPa降至 5 6 4MPa,它们的氢脆系数分别为 86 .8%和 80 .9% .SEM断口分析结果与上述结论一致
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| 关 键 词： | 堆焊层 SSRT 氢脆 |
Effect of hydrogen on the behaviour of stainless steel weld overlay cladding applied to low alloy steel |
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| XU Jian,D.HARDIE,ZHONG Man-ying.Effect of hydrogen on the behaviour of stainless steel weld overlay cladding applied to low alloy steel[J].Journal of China Jiliang University,2000,11(1):16-21. |
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| Authors: | XU Jian DHARDIE ZHONG Man-ying |
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| Abstract: | The investigation on slow strain rate testing(SSRT) of the weld overlay cladding of 309L and 347L in original and hydrogen charged conditions indicated that 1.For original specimens,the fracture of both smooth and notched specimens occurred in the 347L region,but if specimen charged with hydrogen the fracture changed in 309L region.2.Hydrogen decreases the strength and ductility of 309L and 347L.After thermally charging with hydrogen the fracture stress dropped from 885MPa to 478MPa for 309L and from 799.9MPa to 564MPa for 347L and hydrogen embrittlement indices were 86.8% and 80.9% respectively. |
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| Keywords: | Weld overlay cladding SSRT Hydrogen embrittlement |
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