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。
Microstructural Evolution of Oxidation Film on a Single Crystal Nickel-Based Superalloy at 980 A degrees C
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论文类型：期刊论文
发表时间：2018-04-01
发表刊物：OXIDATION OF METALS
收录刊物：SCIE、EI、Scopus
卷号：89
期号：3-4
页面范围：303-317
ISSN号：0030-770X
关键字：Nickel-based; Superalloy; Oxidation; Alumina; Film
摘要：The isothermal oxidation behavior of a single crystal nickel-based superalloy was investigated at 980 A degrees C through XRD, SEM/EDX and EPMA. The mass gain process exhibited two periods: an initial stage followed by a steady-state stage. Based on the experimental results, the rapid formation of alumina and NiO was responsible for the initial stage of mass gain, and the formation of complex spinels phases may dramatically effect on the steady stage. The microstructure of oxidation film, from the top surface down to the base material, was clarified as Ni-rich oxides, Ni-Cr oxides, Cr-Ta-Co oxides, Ni-Al oxides and finally a continuous Al2O3. In addition, AlN formed in the gamma'-free zone. The effect of oxidation film evolution on the oxidation kinetics and mechanism were discussed.
发表时间：2018-04-01
