The characterization of corrosion resistance in the Ti-6Al-4V alloy fusion zone following a gas tungsten arc welding process

被引：10

作者：

Wang, Le-Min ^{[1
]}

Lin, Huang-Chih ^{[2
]}

机构：

[1] Natl Def Univ, Chung Cheng Inst Technol, Dept Power Vehicle & Syst Engn, Tao Yuan 33509, Taiwan

[2] Natl Def Univ, Chung Cheng Inst Technol, Grad Sch Def Sci, Tao Yuan 33509, Taiwan

来源：

JOURNAL OF MATERIALS RESEARCH | 2009年 / 24卷 / 12期

关键词：

OXIDATION; BEHAVIOR; RATES;

D O I：

10.1557/JMR.2009.0444

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Ti-6Al-4V sheet alloys were welded by using a common gas tungsten arc welding process. In this work, we study the correlation of corrosion resistance and oxide layer structure produced after commonly used industrial heat treatments. We also study the oxide scales that were formed as a result of the heat-related treatment/aging process. The results indicate that better corrosion resistance of the Ti-6Al-4V alloy weldment can be obtained and significantly improved by a solution treatment plus an artificial aging (ST+AA) treatment, owing to the enhanced intensity of TiO(2), V(2)O(5), and Al(2)O(3) oxides that compacted and grew on the surface of fusion zone. The newly found gamma-TiAl and alpha(2)-Ti(3)Al particles that nucleated in the fusion zone due to different heat treatments do affect the composition of the oxide layer. The possible mechanism for this oxide layer formation in the fusion zone is discussed.

引用

页码：3680 / 3688

页数：9

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