Microstructures and properties of ferrite/bainite dual-phase steels with high hole-expanding ratio Cai, M. H., Ding, H., Zhang, J. S., Tang, Z. Y. and Wang, W. W. 2008, Microstructures and properties of ferrite/bainite dual-phase steels with high hole-expanding ratio, Kang T'ieh/Iron and steel (Peking), vol. 43, no. 8, pp. 77-85. Attached Files Name Description MIMEType Size Downloads Title Microstructures and properties of ferrite/bainite dual-phase steels with high hole-expanding ratio Author(s) Cai, M. H. Ding, H. Zhang, J. S. Tang, Z. Y. Wang, W. W. Journal name Kang T'ieh/Iron and steel (Peking) Volume number 43 Issue number 8 Start page 77 End page 85 Total pages 5 Publisher Yejin Gongye Chubanshe Place of publication Peking, China Publication date 2008 ISSN 0449-749X Keyword(s) Crack propagation Ferrite/bainite dual-phase steel Formability Mn content Si content Summary The effects of Si and Mn contents on microstructure, mechanical properties and formability of low carbon Si-Mn steels were studied, and the crack propagation of ferrite/bainite dual-phase steel was also investigated. The results showed that the increase in Si content increases the volume fraction of equiaxed ferrite. However, the increase in Mn content increases both strength and ductility, but decreases elongation and hole-expanding ratio. The crack of ferrite/bainite dual-phase steel is formed by the mode of microvoid coalescence. When a microcrack meets the bainite, it mostly propagates along the phase interface between ferrite and bainite and by cutting off ferrite grains. The hot-rolled ferrite/bainite dual-phase steel, which has a hole-expanding ratio of 95% and good property combination, could be produced by designing proper contents of Si and Mn as well as parameters of TMCP. Language chi Field of Research 109999 Technology not elsewhere classified Socio Economic Objective 970110 Expanding Knowledge in Technology HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2008, Yejin Gongye Chubanshe Persistent URL http://hdl.handle.net/10536/DRO/DU:30047858 Document type: Journal Article Collections: Institute for Frontier Materials GTP Research   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 03 Sep 2012, 14:10:29 EST Fri, 18 Jan 2013, 13:29:13 EST Wed, 25 Jun 2014, 11:46:42 EST Mon, 21 Jul 2014, 15:30:08 EST Fri, 14 Nov 2014, 13:43:12 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 7 times in Scopus Search Google Scholar Access Statistics: 651 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Mon, 03 Sep 2012, 14:10:29 EST