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Mechanical and Microstructural Evolution of Friction Stir Welded Joint of AA2014 Alloys

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Title Mechanical and Microstructural Evolution of Friction Stir Welded Joint of AA2014 Alloys
 
Creator Singh, Bharat
Sankhla, Arvind
Saxena, Kuldeep K
Singhal, Piyush
 
Subject FSW
AA2014
Recrystallization
Tensile properties
Pin profile
Grain refinement
Impact Energy
EBSD
 
Description 598-604
The solidification cracking phenomenon restricts the use of fusion welding process to join aluminum and its alloy.
Friction stir welding (FSW) process can be used in joining of aluminium alloys which is not or less susceptible to form
welded voids, induced distortions, solidification cracking. In the present work an investigation of mechanical and
microstructural changes after FSW is presented during the similar joining of AA2014 aluminium alloys. The influences of
tool geometry during FSW is analysed and compared among the joint made by triangular, pedal and pentagonal pin. Based
on the obtained mechanical properties of the joint metallurgical investigation is performed. Optical micrographs are used to
reveal the phases present in the fusion zone. EBSD investigation of the selected sample is done to analyse the mis-orientaion
angle and grain size etc. Pedal pin profile tool exhibit better mechanical properties in comparison to pentagonal pin and
triangular pin. Obtained ultimate tensile strength and percentage elongation are 345MPa and 13.5 % respectively. Microhardness
and impact energy are obtained as 125HV0.2 and 4.6 J of Fpedalsample. Obtained joint efficiency of Fpedal sample
is 74%, which is higher among joint efficiency of Fpentagonal and Ftringular samples.
 
Date 2022-11-01T05:20:49Z
2022-11-01T05:20:49Z
2022-10
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/60761
https://doi.org/10.56042/ijems.v29i5.67616
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.29(5) [October 2022]