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2019 | OriginalPaper | Buchkapitel

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

verfasst von : Vivek Patel, Wenya Li, Quan Wen, Yu Su, Na Li

Erschienen in: Magnesium Technology 2019

Verlag: Springer International Publishing

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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.

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Titel: Homogeneous Grain Refinement and Ductility Enhancement in AZ31B Magnesium Alloy Using Friction Stir Processing
verfasst von: Vivek Patel
Wenya Li
Quan Wen
Yu Su
Na Li
Verlag: Springer International Publishing
Buch: Magnesium Technology 2019
Print ISBN: 978-3-030-05788-6

Electronic ISBN: 978-3-030-05789-3

Copyright-Jahr: 2019
DOI: https://doi.org/10.1007/978-3-030-05789-3_14

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