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Metallurgical and Materials Transactions B
Published in: Metallurgical and Materials Transactions B 6/2017

05-10-2017

Use of Friction Stir Processing for Improving Heat-Affected Zone Liquation Cracking Resistance of a Cast Magnesium Alloy AZ91D

Authors: G. M. Karthik, G. D. Janaki Ram, Ravi Sankar Kottada

Published in: Metallurgical and Materials Transactions B | Issue 6/2017

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Abstract

In this work, a cast magnesium alloy AZ91D was friction stir processed. Detailed microstructural studies and Gleeble hot ductility tests were conducted on the as-cast and the FSPed samples to comparatively assess their heat-affected zone liquation cracking behavior. The results show that the use of FSP as a pretreatment to fusion welding can strikingly improve the heat-affected zone liquation cracking resistance of alloy AZ91D by reducing the amount and size of the low-melting eutectic β (Mg17Al12) as well as by refining the matrix grain size.
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Metadata
Title
Use of Friction Stir Processing for Improving Heat-Affected Zone Liquation Cracking Resistance of a Cast Magnesium Alloy AZ91D
Authors
G. M. Karthik
G. D. Janaki Ram
Ravi Sankar Kottada
Publication date
05-10-2017
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 6/2017
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-017-1100-z

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