Origin of abnormal formation of pearlite in medium-carbon steel under nonequilibrium conditions of heating


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Abstract

The structure and kinetics of the formation of austenite in medium-carbon steel during shortterm heating above the temperature Ac1 followed by accelerated cooling are analyzed. It has been shown that the abnormal formation of pearlite in steel results from the concentrational and structural inhomogeneity of austenite, as well as the presence of carbide particles in ferrite areas.

About the authors

D. A. Mirzaev

South Ural State University

Author for correspondence.
Email: labmet@imp.uran.ru
Russian Federation, pr. Lenina 86, Chelyabinsk, 454080

I. L. Yakovleva

Mikheev Institute of Metal Physics, Ural Branch

Email: labmet@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

N. A. Tereshchenko

Mikheev Institute of Metal Physics, Ural Branch

Email: labmet@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990

V. N. Urtsev

ITTs Ausferr

Email: labmet@imp.uran.ru
Russian Federation, ul. Gor’kogo 26, Magnitogorsk, Chelyabinskaya oblast, 455000

V. N. Degtyarev

ITTs Ausferr

Email: labmet@imp.uran.ru
Russian Federation, ul. Gor’kogo 26, Magnitogorsk, Chelyabinskaya oblast, 455000

A. V. Shmakov

ITTs Ausferr

Email: labmet@imp.uran.ru
Russian Federation, ul. Gor’kogo 26, Magnitogorsk, Chelyabinskaya oblast, 455000


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