Fatigue property improvements of ZK60 magnesium alloy: Effects of thin film metallic glass

被引：9

作者：

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

Lee, C. M. ^{[1
]}

Chu, J. P. ^{[1
]}

Liaw, P. K. ^{[2
]}

Jang, S. C. J. ^{[3
]}

机构：

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

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

[3] Natl Cent Univ, Inst Mat Sci & Engn, Dept Mech Engn, Taoyuan 32001, Taiwan

来源：

THIN SOLID FILMS | 2016年 / 616卷

关键词：

Thin film metallic glasses; ZK60 Mg alloy; Four-bending fatigue; Fatigue limit; Fatigue resistant; CRACK-INITIATION; BEHAVIOR; PROPAGATION; STRAIN; TIN;

D O I：

10.1016/j.tsf.2016.09.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The application of thin film metallic glass (TFMG) has been shown to improve the fatigue characteristics of ZK60 magnesium alloys. This paper reports on the deposition of Zr51Cu32Al10Ni7 (Z-TFMG) and W70Ni20B10 (W-TFMG) on ZK60 Mg alloy to a thickness of 200 nm and its effect on fatigue characteristics. In four-point-bending fatigue studies at room temperature, the fatigue limits of the bare, W-, and Z-TFMG-coated Mg alloys were 225, 270, and 280 MPa, respectively. These values indicate that the TFMG coatings improved fatigue resistance by as much as 24% through 10(7) cycles. The hardness of TFMGs, their excellent adhesion to the substrate, and the resulting reduction in surface roughness are believed to account for the enhanced fatigue characteristics. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：431 / 436

页数：6

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