The use of Fe-30% Ni and Fe-30% Ni-Nb alloys as model systems for studying the microstructural evolution during the hot deformation of austenite

Palmeire, E. J., Cizek, P., Bai, F., Poths, R. M., Turner, J., Wynne, B. P. and Rainforth, W. M. 2011, The use of Fe-30% Ni and Fe-30% Ni-Nb alloys as model systems for studying the microstructural evolution during the hot deformation of austenite, Materials and manufacturing processes, vol. 26, no. 1, pp. 127-131.

Attached Files
Name Description MIMEType Size Downloads

Title The use of Fe-30% Ni and Fe-30% Ni-Nb alloys as model systems for studying the microstructural evolution during the hot deformation of austenite
Author(s) Palmeire, E. J.
Cizek, P.
Bai, F.
Poths, R. M.
Turner, J.
Wynne, B. P.
Rainforth, W. M.
Journal name Materials and manufacturing processes
Volume number 26
Issue number 1
Start page 127
End page 131
Total pages 5
Publisher Taylor & Francis Inc.
Place of publication Philadelphia, Pa.
Publication date 2011
ISSN 1042-6914
1532-2475
Keyword(s) metallic materials
microstructural evolution
thermomechanical processing
Summary The development of physically-based models of microstructural evolution during thermomechanical processing of metallic materials requires knowledge of the internal state variable data, such as microstructure, texture, and dislocation substructure characteristics, over a range of processing conditions. This is a particular problem for steels, where transformation of the austenite to a variety of transformation products eradicates the hot deformed microstructure. This article reports on a model Fe-30wt% Ni-based alloy, which retains a stable austenitic structure at room temperature, and has, therefore, been used to model the development of austenite microstructure during hot deformation of conventional low carbon-manganese steels. It also provides an excellent model alloy system for microalloy additions. Evolution of the microstructure and crystallographic texture was characterized in detail using optical microscopy, X-ray diffraction (XRD), SEM, EBSD, and TEM. The dislocation substructure has been quantified as a function of crystallographic texture component for a variety of deformation conditions for the Fe-30% Ni-based alloy. An extension to this study, as the use of a microalloyed Fe-30% Ni-Nb alloy in which the strain induced precipitation mechanism was studied directly. The work has shown that precipitation can occur at a much finer scale and higher number density than hitherto considered, but that pipe diffusion leads to rapid coarsening. The implications of this for model development are discussed.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, Taylor & Francis Group, LLC
Persistent URL http://hdl.handle.net/10536/DRO/DU:30040404

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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: 61 Abstract Views, 6 File Downloads  -  Detailed Statistics
Created: Mon, 05 Dec 2011, 12:35:53 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.