Enhancement of fatigue and corrosion properties of pure Ti by sandblasting

被引：161

作者：

Jiang, X. P.

Wang, X. Y.

Lia, J. X.

Li, D. Y.

Man, C. -S.

Shepard, M. J.

Zhai, T.

机构：

[1] Univ Kentucky, Dept Chem & Mat Sci, Lexington, KY 40506 USA

[2] Univ Alberta, Dept Chem & Mat Sci, Edmonton, AB T6G 2G6, Canada

[3] Univ Kentucky, Dept Math, Lexington, KY 40506 USA

[4] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 429卷 / 1-2期

关键词：

sandblasting; residual stress; nano-surface layer; surface enhancement;

D O I：

10.1016/j.msea.2006.04.024

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Commercially pure titanium was sandblasted with SiO2 particles of 200-300 mu m in diameter. It was found that the sandblasted samples exhibited an increase in fatigue strength by 11% over that of the untreated samples. The peak subsurface compressive residual stress produced by sandblasting was measured by XRD to be around 480 MPa. Three distinct regions were observed in the sandblasted samples, namely the severely deformed surface layer, the region deformed mainly by twinning, and the substrate. After recovery treatment below 300 degrees C, the surface layer of the sandblasted samples was transformed into a nano-crystalline structure, and its corrosion resistance was significantly improved. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：30 / 35

页数：6

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