Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting

In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grai...

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Main Authors:	Das, Sanjeev, Barekar, NS, Fakir, Omer El, Wang, Liliang, A. K., Prasada Rao, Patel, JB, Kotadia, HR, Bhagurkar, A, Dear, John P, Fan, Z
Format:	Article
Language:	English English
Published:	Elsevier Ltd 2014
Subjects:	TN Mining engineering. Metallurgy
Online Access:	http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf

id	ump-7741
recordtype	eprints
spelling	ump-77412018-03-12T02:28:09Z http://umpir.ump.edu.my/id/eprint/7741/ Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z TN Mining engineering. Metallurgy In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grain structure was observed for MC-TRC samples in as-cast condition. Whereas, coarse columnar grains with centreline segregation were observed in the case of as-cast TRC samples. The solidi fication mechanisms for TRC and MC-TRC have been found completely divergent. The homogenized TRC and MC-TRC samples were subjected to tensile test at elevated temperature (250–4001C). At 2501C, MC-TRC sample showed significant improvement in strength and ductility. However, at higher temperatures the tensile properties were almost comparable, despite of TRC samples having larger grains compared to MC-TRC samples. The mechanism of deformation has been explained by detailed fractures surface and sub-surface analysis carried out by scanning electron and optical microscopy. Homogenized MC-TRC samples were formed (hot stamping) into engineering component without any trace of crack on its surface. Whereas, TRC samples cracked in several places during hot stamping process Elsevier Ltd 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf Das, Sanjeev and Barekar, NS and Fakir, Omer El and Wang, Liliang and A. K., Prasada Rao and Patel, JB and Kotadia, HR and Bhagurkar, A and Dear, John P and Fan, Z (2014) Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting. Materials Science and Engineering: A, 620. pp. 223-232. ISSN 0921-5093 http://dx.doi.org/10.1016/j.msea.2014.10.019 doi:10.1016/j.msea.2014.10.019
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TN Mining engineering. Metallurgy
spellingShingle	TN Mining engineering. Metallurgy Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
description	In the present investigation, magnesium strips were produced by twin roll casting (TRC) and melt conditioned twin roll casting (MC-TRC) processes. Detailed optical microscopy studies were carried out on as-cast and homogenized TRC and MC-TRC strips. The results showed uniform, fine and equiaxed grain structure was observed for MC-TRC samples in as-cast condition. Whereas, coarse columnar grains with centreline segregation were observed in the case of as-cast TRC samples. The solidi fication mechanisms for TRC and MC-TRC have been found completely divergent. The homogenized TRC and MC-TRC samples were subjected to tensile test at elevated temperature (250–4001C). At 2501C, MC-TRC sample showed significant improvement in strength and ductility. However, at higher temperatures the tensile properties were almost comparable, despite of TRC samples having larger grains compared to MC-TRC samples. The mechanism of deformation has been explained by detailed fractures surface and sub-surface analysis carried out by scanning electron and optical microscopy. Homogenized MC-TRC samples were formed (hot stamping) into engineering component without any trace of crack on its surface. Whereas, TRC samples cracked in several places during hot stamping process
format	Article
author	Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z
author_facet	Das, Sanjeev Barekar, NS Fakir, Omer El Wang, Liliang A. K., Prasada Rao Patel, JB Kotadia, HR Bhagurkar, A Dear, John P Fan, Z
author_sort	Das, Sanjeev
title	Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
title_short	Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
title_full	Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
title_fullStr	Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
title_full_unstemmed	Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting
title_sort	effect of melt conditioning on heat treatment and mechanical properties of az31 alloy strips produced by twin roll casting
publisher	Elsevier Ltd
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/ http://umpir.ump.edu.my/id/eprint/7741/1/ac.els-cdn.com_S0921509314012623_1-s2.0-S0921509314012623-main.pdf http://umpir.ump.edu.my/id/eprint/7741/4/Effect%20Of%20Melt%20Conditioning%20On%20Heat%20Treatment%20And%20Mechanical%20Properties%20Of%20AZ31%20Alloy%20Strips%20Produced%20By%20Twin%20Roll%20Casting.pdf
first_indexed	2023-09-18T22:04:40Z
last_indexed	2023-09-18T22:04:40Z
_version_	1777414628425334784

Effect of melt conditioning on heat treatment and mechanical properties of AZ31 alloy strips produced by twin roll casting

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