Combinatorial optimization of carbide-free bainitic nanostructures
Combinatorial optimization of carbide-free bainitic nanostructures
Thermodynamic calculations in combination with a neural network model are employed to predict the conditions under which nanostructured carbide-free bainite can be formed. The method recovers well the conditions under which the alloys reported in the literature display such features. Aluminium and silicon are shown to be equally effective in suppressing cementite. Manganese reduction appears to be the most effective means to accelerate bainite formation at low temperatures. A new low-manganese high-chromium steel grade capable of transforming into a nanostructured carbide-free structure is proposed, in which thermokinetic calculation and experiment show that low-temperature bainite forms faster and displays greater hardness than the alloys previously reported in the literature.
Bainitic steels, Carbide, Nanostructured materials, Phase transformations
1639-1647
Huang, H.
9b17bb90-60e8-4790-98d5-62ec5bce96c3
Sherif, M.Y.
0fc86657-ae50-4241-ab5d-e709cd53e4ed
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
March 2013
Huang, H.
9b17bb90-60e8-4790-98d5-62ec5bce96c3
Sherif, M.Y.
0fc86657-ae50-4241-ab5d-e709cd53e4ed
Rivera-Díaz-Del-Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Huang, H., Sherif, M.Y. and Rivera-Díaz-Del-Castillo, P.E.J.
(2013)
Combinatorial optimization of carbide-free bainitic nanostructures.
Acta Materialia, 61 (5), .
(doi:10.1016/j.actamat.2012.11.040).
Abstract
Thermodynamic calculations in combination with a neural network model are employed to predict the conditions under which nanostructured carbide-free bainite can be formed. The method recovers well the conditions under which the alloys reported in the literature display such features. Aluminium and silicon are shown to be equally effective in suppressing cementite. Manganese reduction appears to be the most effective means to accelerate bainite formation at low temperatures. A new low-manganese high-chromium steel grade capable of transforming into a nanostructured carbide-free structure is proposed, in which thermokinetic calculation and experiment show that low-temperature bainite forms faster and displays greater hardness than the alloys previously reported in the literature.
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Accepted/In Press date: 21 November 2012
e-pub ahead of print date: 20 December 2012
Published date: March 2013
Keywords:
Bainitic steels, Carbide, Nanostructured materials, Phase transformations
Identifiers
Local EPrints ID: 492472
URI: http://eprints.soton.ac.uk/id/eprint/492472
ISSN: 1359-6454
PURE UUID: 6f91b064-6c97-45ff-a56d-411f879df285
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Date deposited: 29 Jul 2024 16:58
Last modified: 30 Jul 2024 02:06
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Contributors
Author:
H. Huang
Author:
M.Y. Sherif
Author:
P.E.J. Rivera-Díaz-Del-Castillo
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