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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
New FeNiCrMo(P, C, B) high-entropy bulk metallic glasses with unusual thermal stability and corrosion resistance
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论文类型：期刊论文
发表时间：2020-04-15
发表刊物：JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
收录刊物：EI、SCIE
卷号：43
页面范围：32-39
ISSN号：1005-0302
关键字：High-entropy bulk metallic glasses; Thermal stability; Crystallization; Corrosion resistance; FeNiCrMo(P, C, B) alloys
摘要：New Fe20-35Ni20Cr20-30Mo5-15(P0.6C0.2B0.2)(20) bulk metallic glasses with excellent thermal stability, strength, and corrosion resistance have been developed through the high-entropy alloy design strategy. The high-entropy bulk metallic glasses (HE-BMGs) possess larger supercooled liquid regions of similar to 69 K, higher crystallization onset temperatures of similar to 852 K, larger undercoolings of similar to 109 K, and more sluggish crystallization process upon heating than the conventional metallic glass benefited from the high mixing entropy effect. The HE-BMGs also exhibit ultrahigh strength of similar to 3.4 GPa, Vickers hardness of similar to 1107, and superior corrosion resistance in acids and NaCl solutions by formation of highly stable Cr- and Moenriched passive films. The new metal-metalloid HE-BMG system and exceptional properties give the alloys good promise for both scientific and engineering applications. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.