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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
Correlation between the glass-forming ability and activation energy of crystallization for Zr75-x Ni25Al (x) metallic glasses
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论文类型：期刊论文
发表时间：2013-05-01
发表刊物：INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
收录刊物：SCIE、EI
卷号：20
期号：5
页面范围：445-449
ISSN号：1674-4799
关键字：metallic glass; thermal stability; glass-forming ability; crystallization kinetics; activation energy
摘要：The thermal stability and the kinetics of glass transition and crystallization for Zr75-x Ni25Al (x) (x = 8-15) metallic glasses were investigated using differential scanning calorimetry (DSC) under continuous heating conditions. The apparent activation energy of glass transition rises monotonously with the Al content increasing; the activation energy of crystallization increases with Al changing from 8at% to 15at%, and then decreases with Al further up to 24at%, which exhibits a good correlation to the thermal stability and the glass-forming ability (GFA). The Zr60Ni25Al15 metallic glass with the largest supercooled liquid region and GFA possesses the highest activation energy of crystallization. The relation between the thermal stability, GFA and activation energy of crystallization was discussed in terms of the primary precipitated phases.