Fatigue properties improvement of high-strength aluminum alloy by using a ZrCu-based metallic glass thin film coating

被引：18

作者：

Tsai, P. H. ^{[1
]}

Li, J. B. ^{[2
]}

Chang, Y. Z. ^{[2
]}

Lin, H. C. ^{[1
]}

Jang, J. S. C. ^{[1
,2
]}

Chu, J. P. ^{[3
]}

Lee, J. W. ^{[4
,5
]}

Liaw, P. K. ^{[6
]}

机构：

[1] Natl Cent Univ, Inst Mat Sci & Engn, Chungli 32001, Taiwan

[2] Natl Cent Univ, Dept Mech Engn, Chungli 32001, Taiwan

[3] Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, Taipei 10607, Taiwan

[4] Ming Chi Univ Technol, Dept Mat Engn, Taipei, Taiwan

[5] Ming Chi Univ Technol, Ctr Thin Film Technol & Applicat, Taipei, Taiwan

[6] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

来源：

THIN SOLID FILMS | 2014年 / 561卷

基金：

美国国家科学基金会;

关键词：

Metallic glass; Thin film; Sputtering; Fatigue property; RESISTANCE; BEHAVIOR;

D O I：

10.1016/j.tsf.2013.06.085

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For further enhancing the fatigue properties of high-strength aluminum alloy, the coating, which was combined with a layer of 200 nm ZrCu-based metallic glass thin film (MGTF) coupled with 50 nm titanium thin film buffer layer, was applied to coat on the surface of 7075-T6 aluminum alloy by the DC sputtering method. The results show that the fatigue limit could be significantly improved from 150 MPa for the uncoated sample to 250 MPa (66.7% increase) for the samples coated with ZrCu-based MGTF. In parallel, the fatigue life of 7075-T6 aluminum alloy with ZrCu-based MGTF could be drastically improved 45 times at a stress level of 250 MPa than the bare one. The outstanding mechanical properties of ZrCu-based MGTF, such as high strength and good adhesion between the film and the substrate, are the key factors to enhance the fatigue resistance of the coated aluminum alloy. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：28 / 32

页数：5

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