Mechanical properties of bitumen quenched dual phase steel

The mechanical properties of Dual Phase Steel (DPS)-duplex structure-produced by quenching in pre-heated bitumen have been investigated. Medium carbon steels intercritically heated at different temperatures and holding times were quenched in hot bitumen. Optical and scanning electron microscopy char...

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Main Authors:	Amuda, M.O.H., Olaniyan, T.A., Osoba, L.O., Akinlabi, E.T.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2017
Online Access:	http://journalarticle.ukm.my/11064/ http://journalarticle.ukm.my/11064/ http://journalarticle.ukm.my/11064/1/09%20M.O.H%20Amuda.pdf

id	ukm-11064
recordtype	eprints
spelling	ukm-110642017-12-12T05:49:34Z http://journalarticle.ukm.my/11064/ Mechanical properties of bitumen quenched dual phase steel Amuda, M.O.H. Olaniyan, T.A. Osoba, L.O. Akinlabi, E.T. The mechanical properties of Dual Phase Steel (DPS)-duplex structure-produced by quenching in pre-heated bitumen have been investigated. Medium carbon steels intercritically heated at different temperatures and holding times were quenched in hot bitumen. Optical and scanning electron microscopy characterisation of the duplex structure showed extensive network of fibrous martensite in a ferritic matrix with occasional presence of polygonal martensite. The duplex phase structure exhibited continuous yielding dynamics, improving the tensile and hardness values by about 42 and 35%, respectively, relative to the normalised structure. But, the elongation and impact values decreased by about 42 and 50%, respectively, when compared to the normalised structure. These values are similar to those obtained in duplex structure produced using conventional oil quenching. The tensile fractured surface showed transition between a predominantly cleavage mode in the lower annealing temperature to a mixed mode in the upper bound of the annealing temperature. These findings suggest that pre-heated bitumen can be exploited for the production of DPSs. Penerbit Universiti Kebangsaan Malaysia 2017-05 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11064/1/09%20M.O.H%20Amuda.pdf Amuda, M.O.H. and Olaniyan, T.A. and Osoba, L.O. and Akinlabi, E.T. (2017) Mechanical properties of bitumen quenched dual phase steel. Sains Malaysiana, 46 (5). pp. 743-753. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol46num5_2017/contentsVol46num5_2017.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The mechanical properties of Dual Phase Steel (DPS)-duplex structure-produced by quenching in pre-heated bitumen have been investigated. Medium carbon steels intercritically heated at different temperatures and holding times were quenched in hot bitumen. Optical and scanning electron microscopy characterisation of the duplex structure showed extensive network of fibrous martensite in a ferritic matrix with occasional presence of polygonal martensite. The duplex phase structure exhibited continuous yielding dynamics, improving the tensile and hardness values by about 42 and 35%, respectively, relative to the normalised structure. But, the elongation and impact values decreased by about 42 and 50%, respectively, when compared to the normalised structure. These values are similar to those obtained in duplex structure produced using conventional oil quenching. The tensile fractured surface showed transition between a predominantly cleavage mode in the lower annealing temperature to a mixed mode in the upper bound of the annealing temperature. These findings suggest that pre-heated bitumen can be exploited for the production of DPSs.
format	Article
author	Amuda, M.O.H. Olaniyan, T.A. Osoba, L.O. Akinlabi, E.T.
spellingShingle	Amuda, M.O.H. Olaniyan, T.A. Osoba, L.O. Akinlabi, E.T. Mechanical properties of bitumen quenched dual phase steel
author_facet	Amuda, M.O.H. Olaniyan, T.A. Osoba, L.O. Akinlabi, E.T.
author_sort	Amuda, M.O.H.
title	Mechanical properties of bitumen quenched dual phase steel
title_short	Mechanical properties of bitumen quenched dual phase steel
title_full	Mechanical properties of bitumen quenched dual phase steel
title_fullStr	Mechanical properties of bitumen quenched dual phase steel
title_full_unstemmed	Mechanical properties of bitumen quenched dual phase steel
title_sort	mechanical properties of bitumen quenched dual phase steel
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2017
url	http://journalarticle.ukm.my/11064/ http://journalarticle.ukm.my/11064/ http://journalarticle.ukm.my/11064/1/09%20M.O.H%20Amuda.pdf
first_indexed	2023-09-18T19:59:13Z
last_indexed	2023-09-18T19:59:13Z
_version_	1777406735339749376

Mechanical properties of bitumen quenched dual phase steel

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