Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing
The microstructure refinement, hardness and corrosion resistance of heat-treated A356 aluminium alloy processed by equal-channel angular pressing (ECAP) were investigated. ECAP was carried out at room temperature using a mold, with a channel angle of 120° via route A. Results of the investigation co...
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2019
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| Online Access: | http://journalarticle.ukm.my/14463/ http://journalarticle.ukm.my/14463/1/16%20M.A.%20Gebril.pdf |
| _version_ | 1848813556575764480 |
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| author | Gebril, M.A. M.Z. Omar, N.K. Othman, I.F. Mohamed, |
| author_facet | Gebril, M.A. M.Z. Omar, N.K. Othman, I.F. Mohamed, |
| author_sort | Gebril, M.A. |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | The microstructure refinement, hardness and corrosion resistance of heat-treated A356 aluminium alloy processed by equal-channel angular pressing (ECAP) were investigated. ECAP was carried out at room temperature using a mold, with a channel angle of 120° via route A. Results of the investigation confirm that the flaky coarse silicon particles were effectively fragmented from 4.22 to 0.761 μm and the grain size reduced from 171 to 40 μm after four passes of heat-treated as-cast using ECAP process. ECAP processing increases the hardness of heat-treated as-cast alloy from 61 Hv to 125 HV after four passes. Heat-treated A356 alloy shows enhanced corrosion resistance from 0.0424 to 0.00149 mmy-1, after four passes. In this research, ECAP processing has been shown to improve the hardness and corrosion resistance of as-cast A356 alloy. |
| first_indexed | 2025-11-15T00:20:04Z |
| format | Article |
| id | oai:generic.eprints.org:14463 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:20:04Z |
| publishDate | 2019 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:144632020-04-21T02:39:16Z http://journalarticle.ukm.my/14463/ Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing Gebril, M.A. M.Z. Omar, N.K. Othman, I.F. Mohamed, The microstructure refinement, hardness and corrosion resistance of heat-treated A356 aluminium alloy processed by equal-channel angular pressing (ECAP) were investigated. ECAP was carried out at room temperature using a mold, with a channel angle of 120° via route A. Results of the investigation confirm that the flaky coarse silicon particles were effectively fragmented from 4.22 to 0.761 μm and the grain size reduced from 171 to 40 μm after four passes of heat-treated as-cast using ECAP process. ECAP processing increases the hardness of heat-treated as-cast alloy from 61 Hv to 125 HV after four passes. Heat-treated A356 alloy shows enhanced corrosion resistance from 0.0424 to 0.00149 mmy-1, after four passes. In this research, ECAP processing has been shown to improve the hardness and corrosion resistance of as-cast A356 alloy. Penerbit Universiti Kebangsaan Malaysia 2019-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14463/1/16%20M.A.%20Gebril.pdf Gebril, M.A. and M.Z. Omar, and N.K. Othman, and I.F. Mohamed, (2019) Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing. Sains Malaysiana, 48 (12). pp. 2749-2757. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil12_2019/KandunganJilid48Bil12_2019.html |
| spellingShingle | Gebril, M.A. M.Z. Omar, N.K. Othman, I.F. Mohamed, Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title | Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title_full | Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title_fullStr | Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title_full_unstemmed | Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title_short | Microstructural refinement and corrosion resistance improvement of heat-treated A356 alloy processed by equal channel angular pressing |
| title_sort | microstructural refinement and corrosion resistance improvement of heat-treated a356 alloy processed by equal channel angular pressing |
| url | http://journalarticle.ukm.my/14463/ http://journalarticle.ukm.my/14463/ http://journalarticle.ukm.my/14463/1/16%20M.A.%20Gebril.pdf |