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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料物理与化学. 材料学
办公地点：大连理工大学新三束实验室410
联系方式：0411-84706400
电子邮箱：yhli@dlut.edu.cn
Formation and properties of P-free Pd-based metallic glasses with high glass-forming ability
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论文类型：期刊论文
发表时间：2014-12-25
发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS
收录刊物：SCIE、Scopus
卷号：617
页面范围：310-313
ISSN号：0925-8388
关键字：Metallic glasses; Pd alloys; Thermoplastic formability; Mechanical property; Manufacturability
摘要：New P-free Pd-based bulk metallic glasses (BMGs) with high glass-forming ability (GFA) were synthesized in Pd-Si-Ag-Cu alloy system, based on a binary Pd83Si17 alloy. Combined addition of Ag and Cu greatly enhances the stability of supercooled liquid and GFA. The Pd-based BMGs have large supercooled liquid region of 66-77 K. The best GFA was obtained for Pd75Si15Ag3Cu7 alloy, and the glassy rods with diameters of up to 10 mm were fabricated by copper mold casting method without fluxing treatment. These BMGs also exhibit low viscosity of similar to 2 x 10(7) Pa s in the supercooled liquid state, excellent thermoplastic formability, high compressive yield strength of 1626 MPa, and large plastic strain of similar to 0.063. (C) 2014 Elsevier B.V. All rights reserved.