| 电解充氢对堆焊熔合区疲劳裂纹扩展行为的影响 |
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| 引用本文： | 刘义祥,吴敬梓.电解充氢对堆焊熔合区疲劳裂纹扩展行为的影响[J].理化检验(物理分册),2000,36(9):387-390. |
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| 作者姓名： | 刘义祥 吴敬梓 |
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| 作者单位： | 1. 武警学院消防工程系,河北廊坊,065000
2. 西安交通大学材料学院,西安,710049 |
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| 摘 要： | 研究了阴极充氢前后堆焊熔合区疲劳裂纹扩展行为，发现堆焊熔合区对疲劳裂纹的扩展有阻碍作用，充氢对裂纹扩展速率无明显影响，但使熔合区出现大量二次裂纹，随着充氢时间的延长，二次裂纹将更加严重。
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| 关 键 词： | 熔合区 疲劳裂纹 充氢 堆焊 电解 |
| 修稿时间： | 2000-01-02 |
EFFECT OF HYDROGEN ON FATlGUE CRACK PROPAGATION IN BOND WELD FUSION ZONE |
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| Liu Yixing,Wu Jingzi.EFFECT OF HYDROGEN ON FATlGUE CRACK PROPAGATION IN BOND WELD FUSION ZONE[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2000,36(9):387-390. |
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| Authors: | Liu Yixing Wu Jingzi |
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| Abstract: | The effect of hydrogen on fatigue crack propagation behavior in weld fusion zone was studied by means of low cycle fatigue test after hydrogen charging. The results showed that the weld fusion obstructed fatigue crack propagation, hydrogen had no evident effect to the fatigue crack propagation rate. But many sub cracks were formed in the weld fusion zone. Longer hydrogen charging time caused formation of more serious sub cracks. |
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| Keywords: | Fusion zone Fatigue crack Hydrogen |
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