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The influence of temperature on deformation-induced martensitic transformation in 301 stainless steel

Das, Yadunandan B.; Forsey, Alexander N.; Kelleher, Joe; Kabra, Saurabh; Fitzpatrick, Michael E.; Simm, Thomas H.; Gungor, Salih and Moat, Richard J. (2018). The influence of temperature on deformation-induced martensitic transformation in 301 stainless steel. Materials Science and Technology, 34(17) pp. 2114–2125.

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Deformation-induced martensitic transformations are increasingly being used to create desirable mechanical properties in steels. Here, the kinetics of the deformation-induced martensitic transformation is investigated at 300, 263, 223, 173 and 100 K using in situ neutron diffraction during tensile loading. The results from these experiments show a distinct change in the transformation behaviour between 300 K and the tests conducted at 263 K and below, causing a difference in martensite structure. The difference in transformation kinetics is correlated to the suppression of slip at low temperatures, as evidenced using diffraction peak intensity analysis for different grain families and corroborated using transmission electron microscopy. A direct correlation between the deformation-induced martensite fraction and the work-hardening rate is shown.

Item Type: Journal Item
Copyright Holders: 2018 Institute of Materials, Minerals and Mining
ISSN: 1743-2847
Keywords: neutron diffraction; solid-state transformation; martensite; TRIP steel; work hardening
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 56304
Depositing User: Richard Moat
Date Deposited: 28 Aug 2018 10:10
Last Modified: 22 Aug 2019 18:35
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