Corrosion Studies on Friction Welded Dissimilar Aluminum Alloys of AA7075-T6 and AA6061 -T6

被引：0

作者：

Sathish, R. ^{[1
]}

Rao, V. Seshagiri ^{[2
]}

机构：

[1] SCSVMV Univ, Kanchipuram, Tamil Nadu, India

[2] St Josephs Coll Engn, Dept Mech Engn, Madras, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2014年 / 9卷 / 08期

关键词：

Friction welding; Tensile strength; Corrosion rate; Optical microscopy;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The aim of this work is to study the effects of corrosion behavior on dissimilar friction welded AA7075 and AA6061 both in T6 conditions. The welded samples are initially subjected to tensile test. Based on tensile strength the samples are subjected to potentiodynamic polarization resistance measurements in NaCl solution. It is observed that the parent metal wrought aluminum alloy found to corrode higher than the corresponding friction welded region of joints. Also the corrosion current and the corrosion rate are higher for the AA7075-T6 side compared to the AA6061-T6 side. The minimum and maximum corrosion rate was varied from 1.91 and 5.74 mm/year in different region. Micro structure study was conducted by optical microscopy to validate the results of the weld joints.

引用

页码：4104 / 4113

页数：10

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