胡建朋,刘智勇,胡山山,李晓刚,杜翠薇.304 不锈钢在模拟深海和浅海环境中的应力腐蚀行为[J].表面技术,2015,44(3):9-14. HU Jian-peng,LIU Zhi-yong,HU Shan-shan,LI Xiao-gang,DU Cui-wei.Stress Corrosion Behavior of 304 Stainless Steel in Simulated Deep and Shallow Seawater Environments[J].Surface Technology,2015,44(3):9-14 |
304 不锈钢在模拟深海和浅海环境中的应力腐蚀行为 |
Stress Corrosion Behavior of 304 Stainless Steel in Simulated Deep and Shallow Seawater Environments |
投稿时间:2015-01-02 修订日期:2015-03-20 |
DOI:10.16490/j.cnki.issn.1001-3660.2015.03.002 |
中文关键词: 304 不锈钢 模拟深海 应力腐蚀 |
英文关键词:304 stainless steel simulated deep sea stress corrosion |
基金项目:国家重点基础研究发展计划(973 计划,2014CB643300);国家自然科学基金(51471034);北京市青年英才计划 |
作者 | 单位 |
胡建朋 | 1. 北京科技大学 腐蚀与防护中心, 北京 100083;2. 教育部腐蚀与防护重点实验室, 北京 100083 |
刘智勇 | 1. 北京科技大学 腐蚀与防护中心, 北京 100083;2. 教育部腐蚀与防护重点实验室, 北京 100083 |
胡山山 | 1. 北京科技大学 腐蚀与防护中心, 北京 100083;2. 教育部腐蚀与防护重点实验室, 北京 100083 |
李晓刚 | 1. 北京科技大学 腐蚀与防护中心, 北京 100083;2. 教育部腐蚀与防护重点实验室, 北京 100083 |
杜翠薇 | 1. 北京科技大学 腐蚀与防护中心, 北京 100083;2. 教育部腐蚀与防护重点实验室, 北京 100083 |
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Author | Institution |
HU Jian-peng | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;2. Key Laboratory of Corrosion and Protection of Ministry Education, Beijing 100083, China |
LIU Zhi-yong | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;2. Key Laboratory of Corrosion and Protection of Ministry Education, Beijing 100083, China |
HU Shan-shan | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;2. Key Laboratory of Corrosion and Protection of Ministry Education, Beijing 100083, China |
LI Xiao-gang | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;2. Key Laboratory of Corrosion and Protection of Ministry Education, Beijing 100083, China |
DU Cui-wei | 1. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China;2. Key Laboratory of Corrosion and Protection of Ministry Education, Beijing 100083, China |
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中文摘要: |
目的 研究 304 不锈钢在模拟深海和浅海中的应力腐蚀开裂(SCC)行为。 方法 通过控制不同环境因素模拟南海某海域环境,利用动电位扫描、交流阻抗谱、慢应变速率拉伸(SSRT)及 SEM 表面分析等手段进行研究。 结果 304 不锈钢在模拟海水溶液中呈现钝化状态,出现应力腐蚀敏感性,且裂纹扩展方式为穿晶开裂。 在深海中的 SCC 机制为氢致开裂,浅海中的 SCC 机制主要为阳极溶解。 结论 304不锈钢在深海与浅海中的 SCC 机制不同,但两者的 SCC 敏感性相近且相对较低,在模拟海水环境中的应用不受海水深度限制。 |
英文摘要: |
Objective To study the stress corrosion cracking (SCC) behavior of 304 stainless steel in simulated deep and shallow seawater environments. Methods The environment of a sea area in the South Sea was simulated by controlling different environmental factors, and potentiodynamic polarization, electrochemical impedance spectroscopy, slow strain rate test (SSRT) and superficial analysis technique using scanning electron microscope were applied for the research. Results 304 stainless steel exhibited a passivation behavior in the simulated seawater solution, and showed SCC susceptibility, besides, the crack propagation mode was transgranular cracking. The SCC mechanism in shallow sea was mainly controlled by anodic dissolution, while that in deep sea was controlled by hydrogen embrittlement. Conclusion Although 304 showed different SCC mechanisms in simulated deep sea and shallow sea, the SCC sensitivities were close and relatively low. So the use of 304 SS in simulated seawater environment was not limited by the depth of seawater. |
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