Microstructure Evolution of the Carbon Steels during Surface Severe Plastic Deformation
M. O. Vasylyev$^1$, B. M. Mordyuk$^{2,1}$, S. M. Voloshko$^2$, and D. A. Lesyk$^2$
$^1$G.V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^2$National Technical University of Ukraine ‘Igor Sikorsky Kyiv Polytechnic Institute’, 37 Prosp. Peremohy, UA-03056 Kyiv, Ukraine
Received 19.06.2021; final version — 11.11.2021 Download PDF
Abstract
The review is devoted to the state-of-the-art views on the microstructure evolution in structural and tool carbon steels during the surface severe plastic deformation (SPD). The main focus is on the effects of the nanocrystallization in the near-surface area of the low-carbon steel (C 0.05–0.2%), medium-carbon steel (C 0.35–0.65%), and high-carbon steel (C 1.0–1.5%). It is reviewed the following advanced surface SPD methods for the metal surfaces in recent years: an ultrasonic impact peening (UIP), high-frequency impact peening (HFIP), air blast shot peening (ABSP), surface mechanical attrition treatment (SMAT), and laser shock peening (LSP). Microstructure evolution before and after SPD is studied by an optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The effects of the SPD parameters on the nanocrystalline modification of such main phase components of the carbon steels as ferrite, pearlite and cementite are analysed. The atomic mechanism of the nanocrystallization is presented. The strain-hardening effect induced by SPD is demonstrated by the data of the near-surface microhardness profiles.
Keywords: carbon steels, mechanical surface treatments, severe plastic deformation, microstructure, nanocrystallization, microhardness.
DOI: https://doi.org/10.15407/ufm.22.04.562
Citation: M. O. Vasylyev, B. M. Mordyuk, S. M. Voloshko, and D. A. Lesyk, Microstructure Evolution of the Carbon Steels during Surface Severe Plastic Deformation, Progress in Physics of Metals, 22, No. 4: 562–618 (2021)