The Kinetics of the Isothermal Bainite Formation in 1%C-1.5%Cr Steel

N.V. Luzginova; L. Zhao; Aurelie Wauthier; Jilt Sietsma

doi:10.4028/www.scientific.net/MSF.500-501.419

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HomeMaterials Science ForumMaterials Science Forum Vols. 500-501The Kinetics of the Isothermal Bainite Formation...

The Kinetics of the Isothermal Bainite Formation in 1%C-1.5%Cr Steel

Abstract:

The kinetics of isothermal bainite formation at 483 K, 503 K and 533 K in a bearing SAE 52100 steel (1,01% C – 1,36% Cr – 0,32% Mn – 0,25% Si (wt.%)) is investigated theoretically and experimentally. It is found that the bainite formation becomes significantly slower with decreasing temperature. To interpret the results, a physical model with a concept of reconstructive approach proposed in the literature is applied. The model gives a reasonable agreement with experimental results, although a certain deviation exists at the late stage of the transformation. This deviation is attributed to the diffusion coefficient used in the model without considering the effect of alloying elements, mainly chromium.

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Periodical:

Materials Science Forum (Volumes 500-501)

Pages:

419-428

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https://doi.org/10.4028/www.scientific.net/MSF.500-501.419

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Online since:

November 2005

Authors:

N.V. Luzginova, L. Zhao, Aurelie Wauthier, Jilt Sietsma

Keywords:

Isothermal Transformation, Kinetic, Lower Bainite

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