Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys-Reference-Cited by-同舟云学术

Effect of post-weld heat treatment on dissimilar friction stir welded AA6063 and A319 aluminium alloys

Published:2014-05-08 Issue:5 Volume:105 Page:507-511
ISSN:2195-8556
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Krishnan M. Muthu¹,Marimuthu K.²

Affiliation:

1. Department of Mechanical Engineering , Kalaignar Karunanidhi Institute of Technology, Coimbatore, Tamilnadu , India

2. Department of Mechanical Engineering , Coimbatore Institute of Technology, Coimbatore, Tamilnadu , India

Abstract

Abstract The effects of post-weld heat treatment at a solution temperature of 540 °C for 5 hrs 30 mins followed by ageing at 190 °C for 6 hrs on microstructure and mechanical properties of friction stir welded dissimilar aluminium alloys A319 and AA6063 have been examined. Post-weld ageing results in improved mechanical properties. The effect of ageing on the morphology of the second phase particles of silicon, copper and iron in the stir zone has been studied. The hardness of the stir zone for both as-welded and post-weld ageing was found to be lower than that of AA6063 but higher than A319 base metal. Microstructural studies reveal that the A319 dominates the stir zone.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.111054/pdf

Reference12 articles.

1. Friction stir welding and processing

2. Friction stir lap joining aluminum and magnesium alloys

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