Microstructure and hardness evolution during simulated coiling of a direct strip cast low carbon low niobium steel

Dorin, Thomas, Hodgson, Peter and Stanford, Nicole 2015, Microstructure and hardness evolution during simulated coiling of a direct strip cast low carbon low niobium steel, in PTM 2015 : Proceedings of the Solid-Solid Phase Transformations in Inorganic Materials 2015 International Conference, [International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015], Whistler, B.C., pp. 47-54.

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Title Microstructure and hardness evolution during simulated coiling of a direct strip cast low carbon low niobium steel
Author(s) Dorin, ThomasORCID iD for Dorin, Thomas orcid.org/0000-0002-1033-961X
Hodgson, Peter
Stanford, Nicole
Conference name Solid-Solid Phase Transformations in Inorganic Materials. International Conference (2015 : Whistler, B.C.)
Conference location Whistler, B.C.
Conference dates 28 Jun. - 3 Jul. 2015
Title of proceedings PTM 2015 : Proceedings of the Solid-Solid Phase Transformations in Inorganic Materials 2015 International Conference
Editor(s) Militzer, Matthias
Botton, Gianluigi
Chen, Lon-Qing
Howe, James
Sinclair, Chadwick
Zurob, Hatem
Publication date 2015
Conference series Solid-Solid Phase Transformations in Inorganic Materials International Conference
Start page 47
End page 54
Total pages 8
Publisher [International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015]
Place of publication Whistler, B.C.
Keyword(s) Strip casting
Low alloy steel
Precipitation
Age-hardening
Engineering controlled terms
Austenite
Hardness
Microstructure
Niobium
Summary This paper examines the impact of coiling temperature and duration on the phase transformation and precipitation behavior of a low carbon and low niobium direct strip cast steel. Coiling was performed at three carefully chosen temperatures: (1) in the ferrite (600°C), (2) during the austenite decomposition (700°C) and (3) in the austenite (850°C). The coiling conditions were found to strongly affect the final microstructure and hardness response, thus highlighting the necessity to judiciously design the coiling treatment. Optical microscopy, and scanning and transmission electron microscopy were used to characterize the microstructural constituents (polygonal ferrite, bainite and pearlite) and the NbC precipitates. Vickers macrohardness measurements are utilized to quantify the mechanical properties. The differences in hardening kinetics for the three different temperatures are shown to come from a complex combination of strengthening contributions.
ISBN 9780692437360
Language eng
Field of Research 020406 Surfaces and Structural Properties of Condensed Matter
091006 Manufacturing Processes and Technologies (excl Textiles)
091207 Metals and Alloy Materials
Socio Economic Objective 861203 Metal Castings
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2015, International Conference on Solid-Solid Phase Transformations in Inorganic Materials
Persistent URL http://hdl.handle.net/10536/DRO/DU:30083411

Document type: Conference Paper
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