不锈钢钝化膜质量检测方法的比较  

Comparison of the Methods for Monitoring Passive Finns on Stainless Steel

作　　者：吴璐莹[1] 潘炳权 刘钧泉[1] 

机构地区：[1]华南理工大学机械与汽车工程学院腐蚀防护与表面工程研究所,广东广州510640 [2]广东南方碱业股份有限公司,广东广州510760

出　　处：《材料保护》2009年第8期76-78,共3页Materials Protection

摘　　要：及时准确地测出不锈钢表面钝化膜的状况对提高其耐蚀性非常重要,现有检测方法有多种,检测结果并不一致。采用铁氰化钾-硝酸法(蓝点法)、硫酸铜试验法和电化学极化曲线法分别对304、316L2种不锈钢材料的去钝化表面、自然钝化表面、化学钝化表面进行抗蚀性能检测,并讨论了各种检测方法的优缺点和适合使用的范围。The passivefilms on stainless steel were detected by using three kinds of tests so as to provide evidence and reference for rapid quality detection of the passive films in engineering practice. Thus passive films were prepared on the surfaces of stainless steel 304 and 316L by using different surface treatment methods such as relief passivation, natu-ral passivation, and chemical passivation. The resulting passivation films were detected by carrying out copper sulfate test, potassiumferricyanide-nitric acid test, and anodic polarization curve test. The advantages, disadvantages and the application scope of various detection methods were compared.

关 键 词：检测分析 钝化膜 不锈钢 

分 类 号：TG174.4[金属学及工艺—金属表面处理]