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。
Comparison of Charpy impact performance for U-shaped and V-shaped notch specimens of 1Cr17Ni2 steel
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论文类型：期刊论文
发表时间：2014-12-30
发表刊物：Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
收录刊物：EI、PKU、ISTIC
卷号：35
页面范围：70-74
ISSN号：10096264
摘要：Charpy impact performance of U-shaped and V-shaped notch 1Cr17Ni2 samples after different heat treatments was studied based on the analysis of impact absorbing energy, fracture morphology and area percentage of fibrous fracture. It is found that the AKU2 values of U-shaped samples meet the requirement of standard but the AKV2 values of V-shaped samples are very low. There is no corresponding relations between AKU2 and AKV2. Fracture morphology analysis indicates that fibrous fractures are characterized with ductile fracture, while crystal fractures are composed of cleavage fracture and intergranular fracture. The area percentages of fibrous for U-shaped notch samples are higher than those of V-shaped notch samples, suggesting the impact test of V-shaped notch samples can evaluate the brittleness tendency of 1Cr17Ni steel more distinctively. It is therefore reliable AKV2 values by using V-shaped specimen is recommended to judge toughness when a high impact property of 1Cr17Ni steel is required in service environment. ©, 2014, Editorial Office of Transactions of Materials and Heat Treatment. All right reserved.
发表时间：2014-12-30
