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。
Interaction Mechanism between Zn and Passivated Stainless Steel
点击次数：
论文类型：期刊论文
发表时间：2019-01-01
发表刊物：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
收录刊物：SCIE、Scopus
卷号：14
期号：1
页面范围：301-314
ISSN号：1452-3981
关键字：Solid Zn; Stainless steel; Passivation; XPS; Mott-Schottky
摘要：This study investigated the interaction between solid Zn and passivated stainless steel. The effect of passivation film on the interaction mechanism of Zn and stainless steel surface was determined. The cross section morphology and the chemical compositions of the intermetallics (IMC) were detected by scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer (EDX). The composition and integrity of the passivation films were identified by X-ray photoelectron spectroscopy (XPS) and Mott-Schottky electrochemical analysis. Results showed that solid Zn reacted with stainless steel by forming interfacial columnar delta phase (Fe, Cr, Ni)Zn-10 with tiny granule zeta phase (Fe, Cr, Ni)Zn-13 IMCs. The reaction was hindered by the chemical passivation film and the native oxide film grown in air; the influence of the former is significantly higher than that of the latter. The passivation films were composed of Fe-rich and Cr-rich oxides and hydroxides. The chemical passivation film was richer in Cr oxides and hydroxides and had higher integrity than the native oxide film. The IMCs formed between the low-melting-point-metal and stainless steel can be attributed to the incomplete passivation films, which impeded the compound layer growth to some extent. The passivation film served as a physical barrier between solid Zn and stainless steel.
发表时间：2019-01-01
