Carbide dissolution in bearing steels

Kang, J. H. and Rivera-Díaz-Del-Castillo, P. E.J. (2013) Carbide dissolution in bearing steels. Computational Materials Science, 67. pp. 364-372. ISSN 0927-0256

Full text not available from this repository.

Abstract

The conditions leading to precipitate dissolution in a variety of bearing steels are studied. Computational thermodynamics and kinetics are employed to determine the microstructural effects leading to precipitate instability, and further dissolution. It is found that there exists a characteristic threshold value of the driving force that induces dissolution and that carbon migration from cementite towards the dislocation strain fields can play a dominant role. Microstructures not fully precipitated and far from their equilibrium volume fraction appear to be much more stable than their fully developed counterparts. An explanation to the occurrence of lenticular carbides engulfing white etching bands and areas is provided. It is discussed how dislocation development and migration in the neighbourhood of ferrite/carbide interfaces control carbide dissolution.

Item Type:
Journal Article
Journal or Publication Title:
Computational Materials Science
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2600/2605
Subjects:
ID Code:
125551
Deposited By:
Deposited On:
25 May 2018 12:48
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Feb 2020 08:21