Features of Austenite Formation in Low-Carbon Steel during High Speed Heating Induced by High-Speed Deformation

An experiment is performed for explosive convergence (collapse) of a cylindrical shell of low carbon steel with a ferrite-perlite structure. It is revealed that during ultra-rapid heating caused by high-speed deformation austenite formation occurs in an unusual sequence: first, free ferrite is conve...

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Bibliographic Details
Published in:Metal science and heat treatment 2020-09, Vol.62 (5-6), p.315-319
Main Authors: Zeldovich, V. I., Frolova, N. Yu, Kheifets, A. E., Khomskaya, I. V., Schastlivtsev, V. M., Shorokhov, E. V.
Format: Article
Language:English
Subjects:
Austenite
Carbon steel
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Cylindrical shells
Engineering Thermodynamics
Ferrite
Heat and Mass Transfer
Heating
High speed
Intermetallic compounds
Iron compounds
Iron constituents
Low carbon steels
Martensite
Materials Science
Metallic Materials
Pearlite
Perlite
Steel constituents
Steel, Structural
Transformation temperature
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Summary:An experiment is performed for explosive convergence (collapse) of a cylindrical shell of low carbon steel with a ferrite-perlite structure. It is revealed that during ultra-rapid heating caused by high-speed deformation austenite formation occurs in an unusual sequence: first, free ferrite is converted, then pearlite. The decrease in free ferrite transformation temperature is explained by action of high pressure, as well as by varying degrees of heating steel structural constituents. An effect of barothermal quenching is observed, as a result of which a pearlite-martensite structure forms.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-020-00560-x