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Modelling the mechanical behaviour of heat-treated AISI 52100 bearing steel with retained austenite
A.D. Anoop, , M. Kamaraj, K. Gopinath
Published in SAGE Publications Ltd
2018
Volume: 232
   
Issue: 1
Pages: 44 - 57
Abstract
The mechanical properties of hardened AISI 52100 bearing steel such as flexural strength, microhardness and Young’s modulus are considerably influenced by the austenite content retained in the microstructure. A microstructure-sensitive finite element simulation approach is presented which considers the effect of retained austenite to estimate the mechanical properties. The austenite grain size is derived as a function of austenitising temperature and holding time using a modified Arrhenius type equation. The simulation strategy involves division of the two-dimensional domain using triangular elements such that a group of six neighbouring triangular elements represented a hexagonal grain of calculated size. Material inhomogeneity is introduced by enforcing austenite properties to a fraction of the elements equal to the volume percent of retained austenite in the steel. The predictions from the simulation approach for 8% and 20% retained austenite volume fractions matched well with earlier experimental results. © 2015, © IMechE 2015.
About the journal
JournalData powered by TypesetProceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
PublisherData powered by TypesetSAGE Publications Ltd
ISSN14644207