摘要
采用宏观形貌对比、3D共聚焦测试、扫描电子显微镜等手段,研究了模拟3000 m深海环境中9XX低合金钢、316L不锈钢和5083-H116铝镁合金之间的电偶腐蚀行为。结果表明:在深海环境中,9XX低合金钢与316L不锈钢之间的电偶腐蚀倾向较大,腐蚀较为严重;5083铝镁合金与316L不锈钢之间电位差较大,但由于二者都形成了致密的保护膜,与316L不锈钢偶接的5083铝镁合金腐蚀较轻;316L不锈钢表面氧化保护膜的存在使其在深海环境中具有优良的耐腐蚀性。
The galvanic corrosion behavior of 9XX low-alloy steel, 316L stainless steel and Al-Mg5083-H116 alloy in a simulated 3000-meter deep sea environment was studied by means of observation of macroscopic morphology, 3D confocal microscope, and scanning electron microscope. The results show that the galvanic corrosion tendency between 9XX low-alloy steel and 316L stainless steel is relatively high, and the corrosion is more serious. The potential difference between 5083 alloy and 316L stainless steel is large, but the corrosion of 5083 alloy coupled with 316L stainless steel is relatively light because of the formation of dense protective film on the surface of two alloys;316L stainless steel exhibits excellent corrosion resistance due to the formation of protective oxide film on the surface.
作者
张泽群
陈质彬
董其娟
邬聪
李宗欣
王禾祖
吴飞
张博威
吴俊升
ZHANG Zequn;CHEN Zhibin;DONG Qijuan;WU Cong;LI Zongxin;WANG Hezu;WU Fei;ZHANG Bowei;WU Junsheng(Institute of Advance Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2022年第3期417-424,共8页
Journal of Chinese Society For Corrosion and Protection
基金
国家自然科学基金(51901018,51771027)
中国科协青年托举人才项目(2019QNRC001)
中央高校基本科研业务费(06500119,FRF-AT-20-07)。
