Influence of the thermal cyclic treatment on the phase composition of ion-nitrided surface layers of 12Kh18N10Т steel

We investigate phase transformations in ion-nitrided surface layers of 12Kh18N10Т steel subjected to thermal cyclic treatment (heating up to 1050 K follows by cooling at a rate of 30 K/min) by the method of magnetic analysis with the help of a vibrating-coil magnetometer, which enables us to affect...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2012-11, Vol.48 (3), p.364-368
Main Authors: Duryahina, Z. A., Borysyuk, A. K., Bespalov, S. A., Pidkova, V. Ya
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Solid Mechanics
Structural Materials
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Summary:We investigate phase transformations in ion-nitrided surface layers of 12Kh18N10Т steel subjected to thermal cyclic treatment (heating up to 1050 K follows by cooling at a rate of 30 K/min) by the method of magnetic analysis with the help of a vibrating-coil magnetometer, which enables us to affect the quasistable quantitative martensite-to-austenite ratio in the nitrided surface layer of steel. It is shown that, as a result of the thermal cyclic treatment, the temperature of the direct martensitic transformation in the nitrided surface layer increases from 380 K in the first cooling cycle up to 540 K in the fifth cooling cycle.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-012-9514-x