Dissimilar metal friction welding of austenitic-ferritic stainless steels

被引：53

作者：

Satyanarayana, VV

Reddy, GM

Mohandas, T ^{[1
]}

机构：

[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India

[2] Vasavi Coll Engn, Hyderabad 500031, Andhra Pradesh, India

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2005年 / 160卷 / 02期

关键词：

dissimilar metal welding; friction welding; austenitic stainless steel; ferritic stainless steel; microstructure; notch tensile strength; hardness; impact toughness; pitting corrosion; residual stresses;

D O I：

10.1016/J.JMATPROTEC.2004.05.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Continuous drive friction welding studies on austenitic-ferritic stainless steel combination has been attempted in this investigation. Parameter optimization, microstructure-mechanical property correlation and fracture behaviour is a major contribution of the study. Sound welds are obtained at certain weld parameter combinations only. The mechanical properties of dissimilar metal welds are comparable to those of ferritic stainless steel welds. Evaluation of the joints for resistance to pitting corrosion revealed that the dissimilar welds exhibit lower resistance to pitting corrosion compared to the ferritic and austenitic stainless steel welds. Interface on the austenitic stainless steel side exhibited higher residual stress possibly due to its higher flow stress and higher coefficient of thermal expansion. (c) 2004 Published by Elsevier B.V.

引用

页码：128 / 137

页数：10

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