| 楔形缝隙对X-42钢在碳酸钠-碳酸氢钠溶液中应力腐蚀敏感性的影响 |
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| 引用本文： | 冯皓,邢广忠,吴荫顺.楔形缝隙对X-42钢在碳酸钠-碳酸氢钠溶液中应力腐蚀敏感性的影响[J].腐蚀与防护,2004,25(2):47-49. |
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| 作者姓名： | 冯皓 邢广忠 吴荫顺 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083
2. 燕山大学材料科学与工程学院,秦皇岛,066004 |
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| 基金项目： | 北京市自然科学基金(3012008)和河北省自然科学基金(502211) |
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| 摘 要： | 用慢应变速率实验测试了X-42钢在0．5mol／L Na2CO3 1mol／L NaHCO3溶液中的应力腐蚀敏感性，研究了模拟楔形缝隙的存在对X-42钢应力腐蚀开裂敏感性的影响。结果表明，当拉伸试样表面封装有0．1mm楔形缝隙时，X-42钢在0．5mol／L Na2CO3 1mol／L NaHCO3溶液中的应力腐蚀开裂敏感性增大。缝隙内初始应力腐蚀裂纹是沿晶发展的。
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| 关 键 词： | 缝隙 X-42钢 应力腐蚀 Na2CO3＋NaHCO3溶液 |
| 文章编号： | 1005-X748(2004)02-0047-03 |
| 修稿时间： | 2003年7月21日 |
EFFECT OF WEDGE-SHAPED CREVICE ON STRESS CORROSION CRACKING OF PIPELINE STEEL X-42 IN CARBONATE-BICARBONATE SOLUTION |
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| FENG Hao,XING Guang-zhong,WU Yin-shun.EFFECT OF WEDGE-SHAPED CREVICE ON STRESS CORROSION CRACKING OF PIPELINE STEEL X-42 IN CARBONATE-BICARBONATE SOLUTION[J].Corrosion & Protection,2004,25(2):47-49. |
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| Authors: | FENG Hao XING Guang-zhong WU Yin-shun |
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| Affiliation: | FENG Hao~1,XING Guang-zhong~2,WU Yin-shun~1 |
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| Abstract: | Slow strain rate tests (SSRT) were used to measure the susceptibility to SCC of pipeline steel API X-42 in 0.5mol/L Na_2CO_3+1mol/L NaHCO_3 solution. The effect of a wedge-shaped crevice on the susceptibility to SCC was also tested. The results showed that the crevice with 0.1mm gab increased the susceptibility to SCC of pipeline steel X-42 steel in carbonate-bicarbonate solution and the initial small cracks propagated along the grain boundaries. |
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| Keywords: | Crevice Steel API X-42 Stress corrosion cracking Carbonate-bicarbonate solution |
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