What is it about?
In this study, the resistance spot weldability of DP450 steel and aluminum alloys (AA1050, AA6061 and AA7075) was investigated and the interfacial characteristics of fracture zones were examined via microanalysis, scanning electron microscopy and energy dispersive spectroscopy (EDX). In addition, tensile shear load tests and hardness tests were performed to determine the mechanical properties and fracture behavior of welded joints. These results suggest that the tensile shear strength of the DP450/AA1050 and DP450/AA7075 joints was not affected by the reaction layer formed at the welding interface. This indicates that the spot weldability of DP450/AA6061 is better than DP450/AA1050 and DP450/ AA7075 Al alloys.
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Perspectives
The aim of this work is to examine the resistance spot weldability of the DP steel–aluminum alloy by using electron probe microanalyzer (EPMA) and scanning electron microscope (SEM) and also to understand the relationship between the interfacial characteristics and mechanical properties of joints.
Dr Yuksel AKINAY
Karabuk Universitesi
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This page is a summary of: Investigation of resistance spot welds between DP450 steel and aluminum alloys, Materials Testing, May 2016, Carl Hanser Verlag,
DOI: 10.3139/120.110873.
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