Development of ultrafine grained steels through thermomechanical processing

Hodgson, Peter, Beladi, Hossein and Kelly, Georgina 2005, Development of ultrafine grained steels through thermomechanical processing, Canadian metallurgical quarterly, vol. 44, no. 2, pp. 179-185.

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Title Development of ultrafine grained steels through thermomechanical processing
Author(s) Hodgson, Peter
Beladi, HosseinORCID iD for Beladi, Hossein
Kelly, Georgina
Journal name Canadian metallurgical quarterly
Volume number 44
Issue number 2
Start page 179
End page 185
Publisher Canadian Institute of Mining, Metallurgy and Petroleum
Place of publication Montreal, Canada
Publication date 2005
ISSN 0008-4433
Keyword(s) deformation
thermomechanical treatment
fine grain structure
grain growth
Summary The formation of ultrafine ferrite by strain induced transformation is assessed using rolling and hot torsion experiments. These experiments are used to examine the impact of thermomechanical processing conditions and steel chemistry on strain induced austenite to ferrite transformation and the formation of ultrafine ferrite. The critical strain for dynamic strain induced transformation increased with increasing carbon equivalence, deformation temperature and austenite grain size. The deformation structure in the austenite grains changes with the thermomechanical processing conditions. Drawing on these results and the current literature, the important factors for the production of ultrafine ferrite are described and a mechanism is proposed.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2005, Canadian Institute of Mining, Metallury and Petroleum
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