| 奥氏体不锈钢SUS316及SUS316L在含Cl-的饱和H2S水溶液中的应力腐蚀行为研究 |
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| 引用本文： | 王荣光,魏云,张清廉,郑文龙.奥氏体不锈钢SUS316及SUS316L在含Cl-的饱和H2S水溶液中的应力腐蚀行为研究[J].中国腐蚀与防护学报,2000,20(1). |
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| 作者姓名： | 王荣光 魏云 张清廉 郑文龙 |
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| 作者单位： | 1. 广岛大学工学部,日本广岛
2. 上海材料研究所,上海,200437 |
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| 摘 要： | 采用U型弯曲试样研究了固溶及敏化奥氏体不锈钢SUS31 6和SUS31 6L在四种不同的含Cl- 的饱和H2 S水溶液中的应力腐蚀开裂 (SCC)行为。研究结果表明Cl- 的加入和pH值的降低会增大实验钢种的应力腐蚀敏感性 ,而微量的Na2 CO3则可降低其SCC敏感性。
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| 关 键 词： | 奥氏体不锈钢 氢脆型应力腐蚀开裂 毒化作用 |
STUDY ON SCC BEHAVIOR OF AUSTENITIC STAINLESS STEELS IN H2S SATURATED AQUEOUS SOLUTIONS CONTAINING Cl- |
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| WANG Rong-guang,WEI Yun,ZHANG Qing-lian,ZHENG Wen-long.STUDY ON SCC BEHAVIOR OF AUSTENITIC STAINLESS STEELS IN H2S SATURATED AQUEOUS SOLUTIONS CONTAINING Cl-[J].Journal of Chinese Society For Corrosion and Protection,2000,20(1). |
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| Authors: | WANG Rong-guang WEI Yun ZHANG Qing-lian ZHENG Wen-long |
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| Abstract: | Stress corrosion cracking (SCC) sensibility of austentic stainless steels SUS 316 and SUS 316L in H 2S saturated aqueous solution containing Cl - or CO 3 2- was investigated by U bend samples. Addition of Cl - and reduction of solution pH intensified the SCC susceptibility of these two steels.But it was decreased obviously when adding 0.001mol/L Na2CO3 into the aqueous solution especially for SUS316. Intergranular corrosion sensibility of SUS 316 was increased after sensitization heat treatment, and its SCC resistance got worse.However,SUS 316L exhibited remarkable immunity to sensitization.The SCC cracking morphology and the mechanism were also discussed. |
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| Keywords: | Austenitic stainless steel Stress corrosion cracking Sensitization heat treatment Intergranular corrosion Morphology |
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