The phase composition researching of the diffusion layer of heat-resistant steel VKS10-U-Sh

Dvoretskov R.M., Kurpyakova N.A., Kolmykova N.A., Karachevtsev F.N.
Dvoretskov R.M., Kurpyakova N.A., Kolmykova N.A., Karachevtsev F.N. The phase composition researching of the diffusion layer of heat-resistant steel VKS10-U-Sh // Proceedings of VIAM. 2015. No. 10. DOI: 10.18577/2307-6046-2015-0-10-5-5. URL: https://test.viam.ru/en/journal/2015/10/5
Abstract

The phase composition of the diffusion layer of high-strength heat-resistant precipitation-hardening steel VKS10-U-Sh, microalloyed with rare-earth metals (REM) after a comprehensive chemical and heat treatment, comprising the steps of vacuum carburizing, strengthening heat treatment (tempering, quenching, maraging and ion-plasma nitriding) has been investigated. The methods of physical-chemical phase analysis (PCPA), electron back scatter diffraction (EBSD) and scanning electron microscopy (SEM) have been used. The data obtained by different methods have allowed finding out which alloying elements form the phase composition of steel and which carbides and nitrides give it the necessary properties.

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