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Effect of pre-weld tempers on mechanical and microstructural behavior of dissimilar friction stir welds of AA2014 and AA7075

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Title Effect of pre-weld tempers on mechanical and microstructural behavior of dissimilar friction stir welds of AA2014 and AA7075
 
Creator Kumar, Raj
Upadhyay, Vikas
Sharma, Chaitanya
 
Subject Friction Stir Welding
Dissimilar aluminum alloys
Pre-weld Temper
Mechanical properties
Microstructure
 
Description 574-582
In this work, friction stir welding of AA2014 and AA7075 has beenperformed indifferent combinationsof T6 and O
temperto study the influence of base metal temper on microstructure, mechanical properties, and fracture behavior of
developed welds. Four dissimilar welded joints have been developed using optimum process parameters:AA2014-T6 with
AA7075-T6, AA2014-O with AA7075-T6, AA2014-T6 with AA7075-O, and AA2014-O with AA7075-O. The stir
zonemicrostructurehas been dominated by the base metal placed on the advancing side and hasequiaxed grains without
constituent particles. Weld joints' strengthhas beeneither nearly equal or higher than that of low strength base metal,whereas
the weld failure has takenplace from the base metal region when at least one base metal was in O temper and from Stir Zone
(SZ) when base metal was in T6 temper.
 
Date 2022-03-03T10:14:14Z
2022-03-03T10:14:14Z
2021-12
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/59270
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.28(6) [December 2021]