Investigation On Corrosion Behavior of Cryogenically Treated Friction Stir Welded AA5083

被引：5

作者：

Neelamegam, Vasudevan ^{[1
]}

Govindasamy Bhavani, Bhaskar ^{[2
]}

Muthukrishnan, Mohandass ^{[3
]}

Tadivaka, Srinivasa Rao ^{[4
]}

机构：

[1] Sri Sairam Engn Coll, Dept Mech Engn, Chennai 600073, Tamil Nadu, India

[2] Anna Univ, Prod Technol Dept, Madras Inst Technol, Chennai 600025, Tamil Nadu, India

[3] Sri Venkateswara Coll Engn, Dept Mech Engn, Chennai 603110, Tamil Nadu, India

[4] ICFAI Fdn Higher Educ, Dept Mech Engn, Fac Sci & Technol, Hyderabad 501203, Telangana, India

来源：

MECHANIKA | 2020年 / 26卷 / 05期

关键词：

AA 5083 aluminum alloy; cryogenic treatment; friction stir welding; corrosion behavior; microstructures; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; CRACKING RESISTANCE; MICROSTRUCTURE; HARDNESS; FSW;

D O I：

10.5755/j01.mech.26.5.23571

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The aluminum alloy 5083 is widely used as a structural material in marine applications due to very good corrosion resistance and low temperature mechanical properties. Friction stir welding, being a solid state process, offers several benefits over the traditional fusion welding processes. In this study, 10 mm thick AA5083-H321 plates were successfully friction stir welded and the welds were investigated for corrosion behavior using salt fog corrosion tests. The friction stir welds exhibited more corrosion rate compared to that of the base material. However, the corrosion rate was observed to decrease with increase in time of exposure. The cryogenic treatment was found to improve corrosion resistance of the base material and the welds. Furthermore, the corrosion rate increases with decrease in pH value of the salt solution. By and large, it is determined that the cryogenic treatment advantageously effects the corrosion behavior.

引用

页码：442 / 449

页数：8

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