Formation of a submicrocrystalline structure in metastable austenitic steels during severe plastic deformation and subsequent heating

L. A. Mal’tseva; T. V. Mal’tseva; A. S. Yurovskikh; G. I. Raab; V. A. Sharapova; K. D. Vakhonina

doi:10.1134/S0036029516030095

Formation of a submicrocrystalline structure in metastable austenitic steels during severe plastic deformation and subsequent heating

Authors: Mal’tseva L.A.¹, Mal’tseva T.V.¹, Yurovskikh A.S.¹, Raab G.I.², Sharapova V.A.¹, Vakhonina K.D.¹
Affiliations:
1. El’tsin Ural Federal University
2. Ufa State Aviation Technical University
Issue: Vol 2016, No 3 (2016)
Pages: 181-188
Section: Article
URL: https://journals.rcsi.science/0036-0295/article/view/170371
DOI: https://doi.org/10.1134/S0036029516030095
ID: 170371

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Abstract

The structure and the mechanical properties of metastable austenitic steels after severe plastic deformation by four or six passes of equal-channel angular pressing (ECAP) at a temperature of 400°C are studied. It is shown that ECAP results in strain hardening mainly due to the formation of a submicrocrystalline structure, which is retained after subsequent heating to 500°C.