Corrosion behaviour of investment cast and friction stir processed Ti-6Al-4V

被引：79

作者：

Atapour, M. ^{[1
,2
]}

Pilchak, A. ^{[1
,3
,4
]}

Frankel, G. S. ^{[1
]}

Williams, J. C. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA

[2] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran

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

[4] Universal Technol Corp, Dayton, OH 45432 USA

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 09期

关键词：

Titanium; SEM; Polarization; Segregation; ALLOYING ADDITIONS; TITANIUM; MICROSTRUCTURE; PASSIVITY; NIOBIUM; ZR; TI;

D O I：

10.1016/j.corsci.2010.05.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion behaviour of investment cast and friction stir (FS) processed Ti-6Al-4V alloy was studied in HCl solution. FS processing was performed with the peak temperatures both above and below the beta transus. All of the samples exhibited active-passive transitions in deaerated 5% HCl at room temperature, but the beta FS processed samples exhibited superior corrosion behaviour. The corrosion morphology after immersion in 20% HCl was rationalized on the basis of a difference in partitioning of the alloying elements, which controls the composition of the alpha and beta phases. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3062 / 3069

页数：8

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