High strength and superior corrosion resistance of the Ti-Ni-Cu-Zr crystal/glassy alloys with superelasticity

被引：9
|
作者：
Liu, Shuaishuai [1 ]
Xia, Chaoqun [1 ,2 ]
Yang, Tai [1 ,2 ]
Yang, Zhidao [1 ]
Liu, Ning [1 ,2 ]
Li, Qiang [1 ,2 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Res Inst Energy Equipment Mat, Tianjin 300130, Peoples R China
[2] Hebei Univ Technol, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Tianjin 300130, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 260卷
基金：
中国国家自然科学基金;
关键词：
Ti-Ni-Cu-Zr alloys; Microstructure; Superelasticity; High-strength; Corrosion; MECHANICAL-PROPERTIES; MARTENSITE;
D O I：
10.1016/j.matlet.2019.126938
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TixNixCu50-xZr50-x (x = 38, 40, 42, 44, at%) crystal-glassy composite alloys with diameter of 2 mm have been prepared by using water-cooled copper mold casting method. The plasticity, strength, and electrochemical corrosion properties of the alloys were investigated. All the Ti-Ni-Cu-Zr alloys showed high strength and excellent plasticity. Specifically, the compressive strength and total strain of the Ti44Ni44Cu6Zr6 alloy were 2750 MPa and 27%, respectively. The superelastic behavior can be attributed to the existence of reversible stress, which induces martensitic transformation. In addition, the Ti-Ni-Cu-Zr amorphous matrix composites exhibited excellent anti-corrosion property in 3.5% NaCl, 0.5 mol/L H2SO4 and 1 mol/L NaOH aqueous solution. (C) 2019 Elsevier B.V. All rights reserved.
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页数：5
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