Combinatorial optimization of carbide-free bainitic nanostructures

Huang, H. and Sherif, M. Y. and Rivera-Díaz-Del-Castillo, P. E J (2013) Combinatorial optimization of carbide-free bainitic nanostructures. Acta Materialia, 61 (5). pp. 1639-1647. ISSN 1359-6454

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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.

Item Type:
Journal Article
Journal or Publication Title:
Acta Materialia
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2503
Subjects:
?? bainitic steelscarbidenanostructured materialsphase transformationsceramics and compositesmetals and alloyspolymers and plasticselectronic, optical and magnetic materials ??
ID Code:
125554
Deposited By:
Deposited On:
25 May 2018 12:50
Refereed?:
Yes
Published?:
Published
Last Modified:
11 Sep 2024 12:52