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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：材料科学与工程学院院长、党委副书记
其他任职：辽宁省高熵合金材料工程研究中心常务副主任、大连理工大学滇西产业发展研究院先进材料制备及装备技术工程研究中心主任
性别：男
毕业院校：西北工业大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程. 材料学. 材料物理与化学
办公地点：辽宁省凝固控制与数字化制备技术重点实验室315室
联系方式：0411-84709400
电子邮箱：luyiping@dlut.edu.cn
Microstructures and mechanical properties of Co2MoxNi2VWx eutectic high entropy alloys
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论文类型：期刊论文
发表时间：2016-11-05
发表刊物：MATERIALS & DESIGN
收录刊物：SCIE、EI、Scopus
卷号：109
页面范围：539-546
ISSN号：0264-1275
关键字：Eutectic high entropy alloy; Microstructure; Mechanical properties
摘要：In this paper, Co2MoxNi2VWx (x = 0.5, 0.6, 0.8, 1.0, 1.5, and 1.75 in molar ratio) eutectic high entropy alloys (EHEAs) were designed to achieve a combination of strength and ductility. The effects of Mo and W elements on the microstructures and mechanical properties of the alloys were investigated, and results showed that by decreasing the Mo and W contents to 0.8 in Co2MoxNi2VWx alloy, a fully eutectic microstructure was obtained. By increasing the Mo and W contents to 1.75, a primary BCC solid solution phase plus eutectic microstructure were obtained. The eutectic microstructure consisted of a mixture of FCC solid solution phase and mu phase. The Co2Mo0.8Ni2VW0.8 alloy with the largest volume fraction of eutectic microstructure exhibited the highest compression strength of 2364 MPa, while the Co2Mo1.75Ni2VW1.75 alloy with the largest volume fraction of BCC phase exhibited the highest yield strength of 1607 MPa. (C) 2016 Elsevier Ltd. All rights reserved.