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Study of solidification cracking in a transformation-induced plasticity-aided steel

Journal Article (2018)
Authors

G. Agarwal ((OLD) MSE-5)

A. Kumar ((OLD) MSE-3)

H Gao ((OLD) MSE-1)

M. Amirthalingam (Indian Institute of Technology Madras)

S. C. Moon (University of Wollongong)

R. J. Dippenaar (University of Wollongong)

I.M. Richardson ((OLD) MSE-5)

Marcel J.M. Hermans ((OLD) MSE-5)

Research Group
(OLD) MSE-5
Copyright
© 2018 G. Agarwal, A. Kumar, H. Gao, M. Amirthalingam, S. C. Moon, R. J. Dippenaar, I.M. Richardson, M.J.M. Hermans
To reference this document use:
https://doi.org/10.1007/s11661-018-4505-7
More Info
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Publication Year
2018
Language
English
Copyright
© 2018 G. Agarwal, A. Kumar, H. Gao, M. Amirthalingam, S. C. Moon, R. J. Dippenaar, I.M. Richardson, M.J.M. Hermans
Research Group
(OLD) MSE-5
Issue number
4
Volume number
49
Pages (from-to)
1015-1020
DOI:
https://doi.org/10.1007/s11661-018-4505-7
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Abstract

In situ high-temperature laser scanning confocal microscopy is applied to study solidification cracking in a TRIP steel. Solidification cracking was observed in the interdendritic region during the last stage of solidification. Atom probe tomography revealed notable enrichment of phosphorus in the last remaining liquid. Phase field simulations also confirm phosphorus enrichment leading to severe undercooling of more than 160 K in the interdendritic region. In the presence of tensile stress, an opening at the interdendritic region is difficult to fill with the remaining liquid due to low permeability and high viscosity, resulting in solidification cracking.