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
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047858

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Checking
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 1 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 245 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Mon, 03 Sep 2012, 14:10:29 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.