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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
A multi-component AlCrFe2Ni2 alloy with excellent mechanical properties
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论文类型：期刊论文
发表时间：2016-04-15
发表刊物：MATERIALS LETTERS
收录刊物：SCIE、EI
卷号：169
页面范围：62-64
ISSN号：0167-577X
关键字：High entropy alloys; Alloy design; Microstructure; Mechanical properties
摘要：A cost effective Co-free AlCrFe2Ni2 high entropy alloy was designed and prepared based on reported AlCoCrFeNi2.1 eutectic high entropy alloys. The as-cast AlCrFe2Ni2 alloy showed a tensile yield strength of 796 MPa, an ultimate strength of 1437 MPa, and an elongation of 15.7%, which was superior to most high entropy alloys and was even comparable with the Ti-based ultrafine-grain alloy. The alloy consisted of noodle-like FCC phases, disordered BCC (A2) phases, and ordered BCC (B2) phases. The excellent mechanical properties of the alloy were attributed to the spinodal decomposition of BCC phases and the composite effect of the softer FCC and harder BCC phases. (C) 2016 Elsevier B.V. All rights reserved.