Bainite: Fragmentation of crystallographically homogeneous domains

Junhak Pak; Dong Woo Suh; Harshad K. D. H. Bhadeshia

doi:10.3139/146.110658

Published by De Gruyter June 11, 2013

Bainite: Fragmentation of crystallographically homogeneous domains

Junhak Pak , Dong Woo Suh and Harshad K. D. H. Bhadeshia

From the journal International Journal of Materials Research

https://doi.org/10.3139/146.110658

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Abstract

It becomes possible in appropriate circumstances for similarly oriented plates of bainite or martensite to merge and form coarse crystallographically homogeneous domains whose presence leads to a deterioration in mechanical properties. A method is presented here for breaking up such domains, by introducing very small scale chemical composition variations in the austenite prior to its transformation.

Keywords: Bainite; Crystallographic grain size; Segregation; Intercritical annealing; Refinement

* Correspondence address Professor H.K.D.H. Bhadeshia Department of Materials Science and Metallurgy University of CambridgePembroke Street, Cambridge CB2 3QZ, U.K. Tel.: +44 1223 334300 Fax: +44 1223 334567 E-mail: hkdb@cam.ac.uk

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Received: 2011-8-30

Accepted: 2011-11-1

Published Online: 2013-06-11

Published in Print: 2012-04-01

Bainite: Fragmentation of crystallographically homogeneous domains

Abstract

References

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