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。
Oxidation Behavior of the Nickel-Based Superalloy DZ125 at 980 degrees C
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论文类型：期刊论文
发表时间：2017-09-01
发表刊物：ACTA METALLURGICA SINICA-ENGLISH LETTERS
收录刊物：Scopus、SCIE、EI
卷号：30
期号：9
页面范围：857-862
ISSN号：1006-7191
关键字：Nickel-based; Superalloy; Oxidation; Alumina
摘要：The isothermal oxidation behavior of the nickel-based superalloy DZ125 was investigated at 980 degrees C through SEM/EDX and XRD. The weight loss process exhibited three periods-initial, transient and steady stages, which correspond to the formation of three layers on the surface. The outer layer was composed of NiO, whereas the intermediate layer mainly consisted of spinels and was accompanied with Ta-rich oxide. Alumina was evident as the inner continuous layer close to the substrate. The first formation of alumina was responsible for the initial stage of weight loss, and the formation of NiO and intermediate layer may dramatically affect on the transient and steady stage, respectively. The oxide scales effect on growth mechanism was discussed.
发表时间：2017-09-01
