学位：博士
职称：教授
所在单位：材料科学与工程学院
长期从事金属材料蠕变、组织演化、损伤及寿命预测工作。主持和参加国家自然科学基金重点和面上项目6项，“863”计划课题2项，省部级及企业项目20余项。获国家发明专利5项，发表学术论文200余篇。出版专著“耐热钢持久性能的统计分析及可靠性预测”1部（科学出版社），译著“高温合金”1部，编著1部。获辽宁省教学名师，宝钢教育奖优秀教师奖。辽宁省教学成果一等奖1项，国家本科一流课程、国家精品在线开放课程负责人。Emerald出版社颁发的学术奖“Literati Club Awards for Excellence”，金属学报2009-2015年度优秀论文奖。省部级科技奖励一等奖、二等奖5项。
Use of colour change indicators to quantify iron contamination on stainless steel
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论文类型：期刊论文
发表时间：2015-08-01
发表刊物：CORROSION ENGINEERING SCIENCE AND TECHNOLOGY
收录刊物：SCIE、EI、Scopus
卷号：50
期号：5
页面范围：346-354
ISSN号：1478-422X
关键字：Stainless steels; Chromaticity techniques; Iron contamination; Corrosion
摘要：The iron contamination on stainless steels was evaluated based on a quantification of colour change after colour reaction of indicators, and the roles of phenanthroline and ferroxyl solutions as colour change indicators were compared during the quantification. The results showed that the sensitivity and the solution stability of phenanthroline solution were superior to the ferroxyl solution. The redness degree using the phenanthroline solution increased with increasing iron contamination, but decreased with increasing Cr content of stainless steels. The potentiodynamic polarisation curves showed that iron contamination deteriorated the local corrosion resistance of stainless steel. The measured values of redness degree have a linear relationship with the breakdown potentials obtained from the polarisation curves. It is supposed that the preferential corrosion of free iron particles and the surface damage induced by the particles is responsible for corrosion degradation of stainless steels.
发表时间：2015-08-01
