Microstructure Evolution and Texture Development of Hot Form-Quench (HFQ) AZ31 Twin Roll Cast (TRC) Magnesium Alloy

J., Alias and Zhou, X. and Das, Sanjeev and El-Fakir, Omer and Thompson, G. E. (2017) Microstructure Evolution and Texture Development of Hot Form-Quench (HFQ) AZ31 Twin Roll Cast (TRC) Magnesium Alloy. In: AIP Conference Proceedings: Proceedings of the 3rd Advanced Materials Conference 2016 (3rd AMC 2016) , 28-29 November 2016 , Langkawi, Malaysia. , 1901 (130005). ISBN 978-0-7354-1589-8

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The present study on the microstructure evolution of hot form-quench (HFQ) AZ31 twin roll cast magnesium alloy attempt to provide an understanding on the grain structure and heterogeneous intermetallic phase formation in the alloy and texture development following the HFQ process. Grain recrystallization and partial dissolution of eutectic β-Mg17Al12 phase particles were occurred during the solution heat treatment at 450°C, leaving the alloy consists of recrystallized grains and discontinuous or random β-Mg17Al12 phase particles distribution with small volume fraction. The particles act as effective nucleation sites for new grains during recrystallization and variation of recrystallization occurrence contributed to texture alteration. The partial or full β-Mg17Al12 phase dissolution following the HFQ induces void formation that act as fracture nucleation site and the corresponding texture alteration in the recrystallized grains led to poor formability in TRC alloy.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Amorphous metals; Crystallization; Materials forming
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Noorul Farina Arifin
Date Deposited: 19 Dec 2017 03:49
Last Modified: 16 May 2018 02:01
URI: http://umpir.ump.edu.my/id/eprint/19594
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