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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/13326/1/20%20Mohamed%20A.%20Gebril.pdf
http://journalarticle.ukm.my/13326/
http://www.ukm.my/jsm/malay_journals/jilid48bil3_2019/KandunganJilid48Bil3_2019.html
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spelling my-ukm.journal.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
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
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/13326/1/20%20Mohamed%20A.%20Gebril.pdf
http://journalarticle.ukm.my/13326/
http://www.ukm.my/jsm/malay_journals/jilid48bil3_2019/KandunganJilid48Bil3_2019.html
_version_ 1643739043797663744
score 13.211869

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