Microstructural origin of friction stir processed zone in a magnesium alloy

Abhishek Tripathi, Asim Tewari, N Srinivasan, G Madhusudhan Reddy, Su-Ming Zhu, Jian Feng Nie, Roger D Doherty, Indradev Samajdar

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study involved edge regions of a friction stir processed (FSP) magnesium alloy (AZ31). Interleaved structures of ultra-fine, of few 100 nm, and coarser grains, several microns, were noted. Very short thermal anneals coarsened the former: generating typical micron-sized FSP grains. A model of microstructural development through grain boundary sliding of the ultra-fine grains was proposed. This model explains weaker texture in such grains and the fact that Mg-FSP shear texture did not change by successive passes.
Original languageEnglish
Pages (from-to)3333-3336
Number of pages4
JournalMetallurgical and Materials Transactions A - Physical Metallurgy and Materials Science
Volume46A
Issue number8
DOIs
Publication statusPublished - Aug 2015

Cite this

Tripathi, Abhishek ; Tewari, Asim ; Srinivasan, N ; Reddy, G Madhusudhan ; Zhu, Su-Ming ; Nie, Jian Feng ; Doherty, Roger D ; Samajdar, Indradev. / Microstructural origin of friction stir processed zone in a magnesium alloy. In: Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science. 2015 ; Vol. 46A, No. 8. pp. 3333-3336.
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abstract = "This study involved edge regions of a friction stir processed (FSP) magnesium alloy (AZ31). Interleaved structures of ultra-fine, of few 100 nm, and coarser grains, several microns, were noted. Very short thermal anneals coarsened the former: generating typical micron-sized FSP grains. A model of microstructural development through grain boundary sliding of the ultra-fine grains was proposed. This model explains weaker texture in such grains and the fact that Mg-FSP shear texture did not change by successive passes.",
author = "Abhishek Tripathi and Asim Tewari and N Srinivasan and Reddy, {G Madhusudhan} and Su-Ming Zhu and Nie, {Jian Feng} and Doherty, {Roger D} and Indradev Samajdar",
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Microstructural origin of friction stir processed zone in a magnesium alloy. / Tripathi, Abhishek; Tewari, Asim; Srinivasan, N; Reddy, G Madhusudhan; Zhu, Su-Ming; Nie, Jian Feng; Doherty, Roger D; Samajdar, Indradev.

In: Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, Vol. 46A, No. 8, 08.2015, p. 3333-3336.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Tripathi, Abhishek

AU - Tewari, Asim

AU - Srinivasan, N

AU - Reddy, G Madhusudhan

AU - Zhu, Su-Ming

AU - Nie, Jian Feng

AU - Doherty, Roger D

AU - Samajdar, Indradev

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AB - This study involved edge regions of a friction stir processed (FSP) magnesium alloy (AZ31). Interleaved structures of ultra-fine, of few 100 nm, and coarser grains, several microns, were noted. Very short thermal anneals coarsened the former: generating typical micron-sized FSP grains. A model of microstructural development through grain boundary sliding of the ultra-fine grains was proposed. This model explains weaker texture in such grains and the fact that Mg-FSP shear texture did not change by successive passes.

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DO - 10.1007/s11661-015-2972-7

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JO - Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science

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