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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
Alloy Designs of High-Entropy Crystalline and Bulk Glassy Alloys by Evaluating Mixing Enthalpy and Delta Parameter for Quinary to Decimal Equi-Atomic Alloys
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论文类型：期刊论文
发表时间：2014-01-01
发表刊物：MATERIALS TRANSACTIONS
收录刊物：SCIE、EI、Scopus
卷号：55
期号：1
页面范围：165-170
ISSN号：1345-9678
关键字：high-entropy alloy; bulk metallic glass; configurational entropy; mismatch entropy; atomic size difference; mixing enthalpy; alloy design
摘要：The values of mixing enthalpy (Delta H-mix) and Delta parameter (delta) were calculated with 73 elements from Miedema's model for multicomponent equi-atomic alloys to investigate the possibilities of the alloys to be formed into high-entropy (H-E) alloys or high-entropy bulk metallic glasses (HE-BMGs). The equi-atomic alloys from about 15 million (C-73(5)) quinary to 621 billion (C-73(10)) decimal systems were evaluated by referring to a Delta H-mix-delta diagram for zones S and B's for H-E alloys with disordered solid solutions and BMGs, respectively, reported by Zhang et al. The results revealed that the number of quinary equi-atomic alloys plotted in zone S is 28405 (similar to 0.19% in C-73(5)), whereas those in zones B-1 and B-2 for conventional and Cu- and Mg-based BMGs, respectively, were 1036385 and 21518 (similar to 6.90 and similar to 0.14%), respectively. This kind of statistical approach using Delta H-mix-delta diagram will lead to finding out unprecedented H-E alloys and HE-BMGs.