The correlation between stacking fault energy and the work hardening behaviour of high-mn twinning induced plasticity steel tested at various temperatures Shterner,V, Timokhina,IB and Beladi,H 2014, The correlation between stacking fault energy and the work hardening behaviour of high-mn twinning induced plasticity steel tested at various temperatures, Advanced Materials Research, pp. 676-681, doi: 10.4028/www.scientific.net/AMR.922.676. Attached Files Name Description MIMEType Size Downloads Title The correlation between stacking fault energy and the work hardening behaviour of high-mn twinning induced plasticity steel tested at various temperatures Author(s) Shterner,V Timokhina,IB Beladi,H orcid.org/0000-0003-0131-707X Journal name Advanced Materials Research Start page 676 End page 681 Total pages 6 Publisher Trans Tech Publications Place of publication Stafa-Zurich, Switzerland Publication date 2014 ISSN 1022-6680 Keyword(s) Dynamic strain aging (DSA) Mechanical twinning Stacking fault energy (SFE) TWIP steel Work hardening rate Summary High-Mn Twinning Induced Plasticity (TWIP) steels have superior mechanical properties, which make them promising materials in automotive industry to improve the passenger safety and the fuel consumption. The TWIP steels are characterized by high work hardening rates due to continuous mechanical twin formation during the deformation. Mechanical twinning is a unique deformation mode, which is highly governed by the stacking fault energy (SFE). The composition of steel alloy was Fe-18Mn-0.6C-1Al (wt.%) with SFE of about 25-30 mJ/m2 at room temperature. The SFE ensures the mechanical twinning to be the main deformation mechanism at room temperature. The microstructure, mechanical properties, work hardening behaviour and SFE of the steel was studied at the temperature range of ambient ≤T[°C]≤ 400°C. The mechanical properties were determined using Instron tensile testing machine with 30kN load cell and strain rate of 10-3s-1 and the work hardening behaviour curves were generated using true stress and true strain data. The microstructure after deformation at different temperatures was examined using Zeiss Supra 55VP SEM. It was found that an increase in the deformation temperature raised the SFE resulting in the deterioration of the mechanical twinning that led to decrease not only in the strength but also in the total strain of the steel. A correlation between the temperature, the SFE, the mechanical twinning, the mechanical properties and the work hardening rate was also found. © (2014) Trans Tech Publications, Switzerland. Language eng DOI 10.4028/www.scientific.net/AMR.922.676 Field of Research 091299 Materials Engineering not elsewhere classified Socio Economic Objective 970109 Expanding Knowledge in Engineering HERDC Research category C1 Refereed article in a scholarly journal ERA Research output type C Journal article Copyright notice ©2014, Trans Tech Publications Persistent URL http://hdl.handle.net/10536/DRO/DU:30070102 Document type: Journal Article Collections: Institute for Frontier Materials GTP Research Related Links Link Description Connect to published version Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Fri, 27 Feb 2015, 09:41:59 EST Sat, 28 Feb 2015, 04:01:23 EST Wed, 04 Mar 2015, 12:33:57 EST Fri, 10 Apr 2015, 14:25:26 EST Fri, 10 Apr 2015, 14:27:03 EST Wed, 22 Apr 2015, 06:12:27 EST Thu, 23 Apr 2015, 12:27:13 EST Thu, 23 Apr 2015, 12:27:57 EST Tue, 28 Apr 2015, 13:41:44 EST Wed, 13 May 2015, 09:28:14 EST Fri, 29 May 2015, 11:30:56 EST Thu, 15 Feb 2018, 14:07:42 EST Thu, 15 Feb 2018, 14:08:18 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 2 times in Scopus Search Google Scholar Access Statistics: 490 Abstract Views, 2 File Downloads  -  Detailed Statistics Created: Fri, 27 Feb 2015, 09:41:59 EST

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