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Modeling microstructure development during hot working of an austenitic stainless steel
Dalarna University, School of Technology and Business Studies, Materials Technology.
Dalarna University, School of Technology and Business Studies, Materials Technology.ORCID iD: 0000-0002-4359-4967
2013 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 753, p. 423-426Article in journal (Refereed) Published
Abstract [en]

A number of physically based models are combined in order to predict microstructure development during hot deformation. The models treat average values for the generation and recovery of vacancies and dislocations, recrystallization and grain growth and the dissolution and precipitation of second phase particles. The models are applied to a number of laboratory experiments made on 304 austenitic stainless steel and the model parameters are adjusted from those used for low alloyed steel mainly in order to obtain the right kinetics for the influence of solute drag on climb of dislocations and on grain growth. The thermodynamic data are obtained using Thermo-Calc© to create solubility products for the possible secondary phases. One case of wire rolling has been analyzed mainly concerning the evolution of recrystallization and grain size. The time, temperature and strain history has been derived using process information. The models are shown to give a fair description of the microstructure development during hot working of the studied austenitic stainless steel. © (2013) Trans Tech Publications, Switzerland.

Place, publisher, year, edition, pages
2013. Vol. 753, p. 423-426
Keyword [en]
Microstructure modelling; Wire rolling
National Category
Materials Engineering
Research subject
Stålformning och ytteknik
Identifiers
URN: urn:nbn:se:du-12202DOI: 10.4028/www.scientific.net/MSF.753.423ISI: 000320677500089Local ID: 978-303785688-8OAI: oai:DiVA.org:du-12202DiVA, id: diva2:620331
Conference
5th International Conference on Recrystallization and Grain Growth, ReX and GG 2013; Sydney, Australia; 5 -10 May 2013
Available from: 2013-05-08 Created: 2013-05-08 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
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