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Homogeneous Grain Refinement and Ductility Enhancement in AZ31B Magnesium Alloy Using Friction Stir Processing

  • Northwestern Polytechnical University Xian
  • Pandit Deendayal Petroleum University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations

Abstract

Low ductility in magnesium (Mg) alloy hinders its application in material forming industries. Hence, it is indeed of the material processing technique to modify the microstructure of Mg alloy for increasing ductility. Present work aims to refine the grain size of thick AZ31B Mg alloy using friction stir processing (FSP) technique. A low heat input stationary shoulder tooling system is used for processing heat sensitive Mg alloy, exhibiting small temperature gradient across the thickness of processed material. This low heat input and small temperature gradient contributed to uniform grain refinement across the thickness due to dynamic recrystallization. Significant reduction in grain size achieved after FSP, which helped to enhance the elongation of FSP samples (top, middle, and bottom) in comparison with the unprocessed material. Furthermore, uniform and homogenous grain size and elongation obtained across the thickness of processed material, which was attributed to the stationary shoulder tooling system.

Original languageEnglish
Title of host publicationMagnesium Technology, 2019
EditorsJ. Brian Jordon, Dmytro Orlov, Vineet V. Joshi, Neale R. Neelameggham
PublisherSpringer International Publishing
Pages83-87
Number of pages5
ISBN (Print)9783030057886
DOIs
StatePublished - 2019
EventMagnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States
Duration: 10 Mar 201914 Mar 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceMagnesium Technology Symposium held at the TMS Annual Meeting and Exhibition, 2019
Country/TerritoryUnited States
CitySan Antonio
Period10/03/1914/03/19

Keywords

  • AZ31B
  • Ductility
  • Friction stir processing
  • Grain refinement
  • Magnesium
  • Stationary shoulder

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