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Characterisation of electric current treated austenite using misorientation angle distributions in martensite

Omoigiade, Osamudiamen; Haldar, Arunansu and Qin, Rongshan (2017). Characterisation of electric current treated austenite using misorientation angle distributions in martensite. Materials Science and Technology, 33(12) pp. 1432–1441.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1080/02670836.2017.1304619
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Abstract

The angle misorientation distribution of martensite formed from electric current treated and non-treated austenite samples are studied using electron backscatter diffraction. The electric currents are pulsed with a loading width of 80 μs, at a frequency of 100 Hz and current density of 4.21 A/mm2 supplied by a DC Voltage. The majority of angle misorientations are < 5° and exist within the martensite grains, while only a minority of all misorientations are derived from the prior austenite grain boundary and were found to lie in the range 20–50°. Distinct textures develop in both electric current treated and non-treated samples with increased quenching temperature. Analysis of the prior austenite shows reduced grains in the electric current treated samples at all quenching temperatures considered.

Item Type: Journal Item
ISSN: 1743-2847
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 49007
Depositing User: Rongshan Qin
Date Deposited: 22 Mar 2017 16:54
Last Modified: 04 Jul 2017 13:07
URI: http://oro.open.ac.uk/id/eprint/49007
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