高海平,张慧霞,郭为民,侯健,周娟,宋泓清.阴极极化对高强钢焊接件应力腐蚀敏感性的影响[J].装备环境工程,2014,11(1):7-12,29. GAO Hai-ping,ZHANG Hui-xia,GUO Wei-min,HOU Jian,ZHOU Juan,SONG Hong-qing.Effect of Cathodic Polarization on Stress Corrosion Cracking Susceptibility of Weld High Strength Low Alloy Steel in Seawater[J].Equipment Environmental Engineering,2014,11(1):7-12,29.
阴极极化对高强钢焊接件应力腐蚀敏感性的影响
Effect of Cathodic Polarization on Stress Corrosion Cracking Susceptibility of Weld High Strength Low Alloy Steel in Seawater
投稿时间:2013-09-16  修订日期:2013-10-11
DOI:10.7643/issn.1672-9242.2014.01.002
中文关键词:  高强钢  阴极极化  海水  应力腐蚀
英文关键词:high-strength steel  cathodic polarization  sea water  stress corrosion
基金项目:
作者单位
高海平 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
张慧霞 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
郭为民 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
侯健 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
周娟 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
宋泓清 中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 
AuthorInstitution
GAO Hai-ping Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
ZHANG Hui-xia Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
GUO Wei-min Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
HOU Jian Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
ZHOU Juan Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
SONG Hong-qing Science and Technology on Marine Corrosion and Protection Laboratory,Luoyang Ship Material Research Institute,Qingdao266101,China 
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中文摘要:
      目的研究不同极化电位下高强钢焊接件在海水中的应力腐蚀敏感性。方法采用慢应变速率试验(SSRT)和电化学阻抗技术来判定不同极化电位条件下高强钢焊接件在海洋环境中应力腐蚀敏感性的大小,利用扫描电镜和三维视频测试技术观察试样断裂处的颈缩情况和断裂方式。结果在Ecorr~-0.9V电位区间内,高强钢焊接件在海水中没有明显的应力腐蚀敏感性;在-1.1~-1.2V电位区间内,焊接件断口出现脆性断裂特征,力学性能下降明显,具有很强的应力腐蚀敏感性。结论阴极极化对高强钢焊接件在海水中的应力腐蚀敏感性影响显著。
英文摘要:
      ObjectiveTo study the stress corrosion cracking behaviors of high-strength low-alloy steel in seawater under different cathodic polarization potentials.MethodsSlow strain rate tests(SSRT),electrochemical impedance spectroscopy(EIS)were used to study the effect of cathodic polarization on stress corrosion cracking susceptibility,scanning electron microscopy(SEM)and Microscopic three-dimensional screen research tools were used to study the necking and fracture surface of samples. ResultsThere is no stress corrosion cracking susceptibility under theEcorr~-0.9V potential,and high stress corrosion cracking susceptibility under the -1.1~-1.2Vpotential.ConclusionCathodic polarization showed significant influence on the stress corrosion cracking behavior of weld high strength low alloy steel in seawater.
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