J. Phys. IV France
Volume 112, October 2003
Page(s) 275 - 278

J. Phys. IV France
112 (2003) 275
DOI: 10.1051/jp4:2003882

Transformation of retained austenite during tempering of high carbon steel

D.E. Kaputkin, L.M. Kaputkina and S.D. Prokoshkin

Moscow Institute for Steel and Alloys, Leninskii Prospect 4, Moscow 119991, Russia

Dilatometric, electron microscopic, and X-ray diffraction techniques have been employed to analyze transformations of the retained austenite in a 1.85 wt % C steel during tempering. The quenched steel contained 82% of retained austenite. Depending on the tempering temperature, transformations of the retained austenite in the highcarbon steel manifest themselves as the formation of bainite "fringes" around the martensite crystals, new lenticular and thin-plate crystals of isothermal martensite also surrounded with the bainite "fringes" as well as the thin-plate pearlite.

© EDP Sciences 2003