Structure and Mechanical Properties of High-Strength Austenitic-Martensitic Trip-Steel VNS9-Sh
- Authors: Kusakin P.S.1, Terent’ev V.F.2
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Affiliations:
- Belgogrod State University
- A. A. Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences
- Issue: Vol 61, No 1-2 (2019)
- Pages: 10-14
- Section: Article
- URL: https://journal-vniispk.ru/0026-0673/article/view/236524
- DOI: https://doi.org/10.1007/s11041-019-00369-3
- ID: 236524
Cite item
Abstract
The structure and mechanical properties of cold-rolled thin-sheet austenitic-martensitic trip-steel VNS9-Sh are studied. The method of electron back-scatter diffraction (EBSD) is used to determine the substructural state of the steel represented by mechanically hardened metastable austenite with a great number of strain twins and strain α′-martensite. The preferred places of nucleation of strain martensite in the range of intersection of strain twins and shear bands are detected. The mechanical properties of steel VNS9-Sh and the main deformation stages, i.e., microscopic yield, yield (Luders–Chernov strain) and strain hardening are determined.
About the authors
P. S. Kusakin
Belgogrod State University
Email: fatig@mail.ru
Russian Federation, Belgorod
V. F. Terent’ev
A. A. Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences
Author for correspondence.
Email: fatig@mail.ru
Russian Federation, Moscow
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