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Dilatometric research on pearlite-to-austenite transformation of Fe–1C–1.44Cr low-alloy steel

Author:
Li, Zhiqiang, Wen, Zhi, Su, Fuyong, Zhang, Ruijie, Zhou, Zhongtan
Source:
Journal of materials science 2018 v.53 no.2 pp. 1424-1436
ISSN:
0022-2461
Subject:
chromium, computer software, ferrimagnetic materials, models, steel, temperature
Abstract:
The pearlite-to-austenite transformation during isothermal and uniform heating processes of classic bearing steels was studied using a dilatometer. The relationship between ferrite, cementite, and austenite during the transformation was investigated in detail. To explain the experimental phenomenon more theoretically, pearlite-to-austenite transformation was simulated using the DICTRA module of the Thermo-Calc software package based on a simplified model. Experimental results validated the pearlite-to-austenite transformation mechanism of low-alloy steel previously proposed. The transformation is controlled by Cr diffusion and C diffusion below and above the partition-to-no-partition temperature, respectively.
Agid:
5849644