Effect of the Removal of a Surface Layer on the Mechanical Properties and the Static Stress–Strain Curves of an Austenitic–Martensitic Sheet TRIP Steel
- Authors: Teren’tev V.F.1, Slizov A.K.2, Prosvirnin D.V.1, Ashmarin A.A.1, Sirotinkin V.P.1, Rybal’chenko O.V.1, Kaplan M.A.1, Baikin A.S.1
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Affiliations:
- IMET RAN
- OAO Kamov
- Issue: Vol 2018, No 4 (2018)
- Pages: 367-371
- Section: Advanced Materials and Technologies
- URL: https://journals.rcsi.science/0036-0295/article/view/172478
- DOI: https://doi.org/10.1134/S0036029518040183
- ID: 172478
Cite item
Abstract
The influence of the removal of a surface layer with a high strain-induced martensite content on the mechanical properties and the shape of stress–strain curves of austenitic–martensitic VNS9-Sh TRIP steel is studied by room-temperature tests. The removal of a surface layer 5–20 μm thick by electropolishing is shown not to decrease the mechanical properties of this steel and not to change the shape of its stress–strain curves, which have a developed yield plateau. This effect can be related to the presence of a long (up to 1%) stage of microyield in this steel. The existence of a yield plateau in the stress–strain curves of VNS9-Sh steel in the initial state and after the removal of a surface layer can also be explained by the simultaneous operation of three plastic deformation mechanisms, namely, slip, twinning, and martensitic transformation, during deformation.
About the authors
V. F. Teren’tev
IMET RAN
Author for correspondence.
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
A. K. Slizov
OAO Kamov
Email: fatig@mail.ru
Russian Federation, Lyubertsy, Moscow oblast, 140007
D. V. Prosvirnin
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
A. A. Ashmarin
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
V. P. Sirotinkin
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
O. V. Rybal’chenko
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
M. A. Kaplan
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991
A. S. Baikin
IMET RAN
Email: fatig@mail.ru
Russian Federation, Moscow, 119991