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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/11064/1/09%20M.O.H%20Amuda.pdf
http://journalarticle.ukm.my/11064/
http://www.ukm.my/jsm/english_journals/vol46num5_2017/contentsVol46num5_2017.html
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spelling my-ukm.journal.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
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 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/11064/1/09%20M.O.H%20Amuda.pdf
http://journalarticle.ukm.my/11064/
http://www.ukm.my/jsm/english_journals/vol46num5_2017/contentsVol46num5_2017.html
_version_ 1643738354824511488
score 13.211869

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