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。
Misorientation dependence of grain boundary migration in advanced ultra-supercritical Ni-based superalloy
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论文类型：期刊论文
发表时间：2018-01-01
发表刊物：MATERIALS SCIENCE AND TECHNOLOGY
收录刊物：SCIE、EI
卷号：34
期号：5
页面范围：607-611
ISSN号：0267-0836
关键字：Creep; deformation; Ni-based superalloy; advance ultra-supercritical; microstructure
摘要：The microstructures of a Ni-based superalloy used in the advanced ultra-supercritical condition were investigated after creep deformation. The grain boundary migrated during tertiary creep. Accompanied by the migration of grain boundaries, the coarsened gamma' phase with rodlike shape was formed and the precipitate-free zones emerged around this coarsened gamma'. The distributional misorientation angle of these grain boundaries was from 45 degrees to 65 degrees. After the examination of the distribution characteristics of the cracks, it was found that the intergranular cracks did not propagate through the precipitate-free zones with the coarsened gamma'.
发表时间：2018-01-01
