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Phase and Structural Transformations in Iron and Carbon Steel Induced by Megavolt High-Current Electron Beam

Published online by Cambridge University Press:  25 February 2011

A. M. Efremov
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
Yu. F. Ivanov
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
V. I. Itin
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
S. V. Lykov
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
A. B. Markov
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
V. P. Rotshtein
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
A. A. Tukhfatullin
Affiliation:
Institute of High-Current Electronics, Acadamy of Sciences, Siberian Branch, 4, Academichesky Av., 634055, Tomsk, Russia
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Abstract

Using X-ray structural and transmission electron microscopy analyses, specific features of the phase and structure transformations in armco-iron and steel 45 affected by a high-current electron beam up to 1011 W/cm2 power density have been studied. It was revealed that hardening of steel with martensite structure has a quasi-periodic character that is caused by the action of a shock wave. The action of a shock wave results in formation of a thin layer on the rear side of the samples. The layer is composed of subgrains of ot-ferrite of a regular hexagonal shape with thin layers of graphite on their boundaries.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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