Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy

Equal channel angular pressing (ECAP) via routes A and Bc was used to process heat treated A356 alloy. The samples produced a range of microstructures in order to investigate the effect of straining on its corrosion behavior in 3.5 wt. % NaCl solution and hardness. The ECAP was conducted at room tem...

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Main Authors:	Gebril, Mohamed A., M. Zaidi Omar, Nk. Othman, I.F. Mohamed
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13326/ http://journalarticle.ukm.my/13326/ http://journalarticle.ukm.my/13326/1/20%20Mohamed%20A.%20Gebril.pdf

id	ukm-13326
recordtype	eprints
spelling	ukm-133262019-08-29T21:44:26Z http://journalarticle.ukm.my/13326/ Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy Gebril, Mohamed A. M. Zaidi Omar, Nk. Othman, I.F. Mohamed, Equal channel angular pressing (ECAP) via routes A and Bc was used to process heat treated A356 alloy. The samples produced a range of microstructures in order to investigate the effect of straining on its corrosion behavior in 3.5 wt. % NaCl solution and hardness. The ECAP was conducted at room temperature in a mold with channel angle of 120°. The results show that brittle coarse silicon particles were effectively fragmented into smaller size in the Al-rich matrix after the processing. The hardness and corrosion resistance test showed improvement after T5 and T6 heat treatment, preferably to T6 due to wholly changed in silicon particles morphology than T5. The hardness increased with ECAP processing from 60.66 Hv to 1133.47, 124.91 Hv after three passes route Bc and four passes route A, respectively. The evaluation of corrosion resistance of the alloy showed improvement from 0.0424 to 0.00173, 0.00149 mmy-1 after three passes route Bc and four passes route A, respectively. In this research, both strength and corrosion resistance are improved by ECAP processing of A356 alloy using both routes. Penerbit Universiti Kebangsaan Malaysia 2019-03 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13326/1/20%20Mohamed%20A.%20Gebril.pdf Gebril, Mohamed A. and M. Zaidi Omar, and Nk. Othman, and I.F. Mohamed, (2019) Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy. Sains Malaysiana, 48 (3). pp. 661-668. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil3_2019/KandunganJilid48Bil3_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Equal channel angular pressing (ECAP) via routes A and Bc was used to process heat treated A356 alloy. The samples produced a range of microstructures in order to investigate the effect of straining on its corrosion behavior in 3.5 wt. % NaCl solution and hardness. The ECAP was conducted at room temperature in a mold with channel angle of 120°. The results show that brittle coarse silicon particles were effectively fragmented into smaller size in the Al-rich matrix after the processing. The hardness and corrosion resistance test showed improvement after T5 and T6 heat treatment, preferably to T6 due to wholly changed in silicon particles morphology than T5. The hardness increased with ECAP processing from 60.66 Hv to 1133.47, 124.91 Hv after three passes route Bc and four passes route A, respectively. The evaluation of corrosion resistance of the alloy showed improvement from 0.0424 to 0.00173, 0.00149 mmy-1 after three passes route Bc and four passes route A, respectively. In this research, both strength and corrosion resistance are improved by ECAP processing of A356 alloy using both routes.
format	Article
author	Gebril, Mohamed A. M. Zaidi Omar, Nk. Othman, I.F. Mohamed,
spellingShingle	Gebril, Mohamed A. M. Zaidi Omar, Nk. Othman, I.F. Mohamed, Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
author_facet	Gebril, Mohamed A. M. Zaidi Omar, Nk. Othman, I.F. Mohamed,
author_sort	Gebril, Mohamed A.
title	Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
title_short	Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
title_full	Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
title_fullStr	Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
title_full_unstemmed	Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy
title_sort	effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated a356 alloy
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13326/ http://journalarticle.ukm.my/13326/ http://journalarticle.ukm.my/13326/1/20%20Mohamed%20A.%20Gebril.pdf
first_indexed	2023-09-18T20:04:36Z
last_indexed	2023-09-18T20:04:36Z
_version_	1777407074337030144

Effect of equal channel angular pressing processing routes on corrosion resistance and hardness of heat treated A356 alloy

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