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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 日本东北大学金属材料研究所 客座教授 日本城西国际 客座教授
性别：男
毕业院校：日本东北大学
学位：博士
所在单位：材料科学与工程学院
学科：材料学. 材料加工工程. 材料物理与化学
办公地点：大连理工大学材料学院
联系方式：0411-84706063 http://anam.dlut.edu.cn
电子邮箱：wzhang@dlut.edu.cn
Formation and mechanical properties of a Zr73Al8Cu6Ni13 bulk metallic glass composite containing in-situ beta-Zr dendrites
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论文类型：期刊论文
发表时间：2019-09-15
发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS
收录刊物：SCIE、EI
卷号：801
页面范围：175-180
ISSN号：0925-8388
关键字：Composites; Bulk metallic glasses; Mechanical properties; Plasticity; Dendrites; beta-phase
摘要：The variations of structure and mechanical properties with sample diameter (d) for ZrAlCuNi alloys containing a high Zr content of 73 at.% were investigated. A Zr73Al8Cu6Ni13 alloy forms a single glassy phase with a d of 1.0 mm and changes to a composite of beta-Zr dendrites dispersing homogeneously in metallic glass matrix when the d increases to 1.5-3.0 mm. The Zr73Al8Cu6Ni13 bulk metallic glass composites (BMGCs) exhibit high compressive plastic strain of over 35% without final failure, superior to that of 4.5% for the phi 1.0 mm bulk metallic glass (BMG) sample, and the yield strength of similar to 1510 MPa is comparable to the BMG. The mechanisms of formation of the beta-Zr dendrites and plasticity improvement of the BMGCs were also discussed. (C) 2019 Elsevier B.V. All rights reserved.