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- Title
STRAIN STATE AND MICROSTRUCTURE EVOLUTION OF AISI-316 AUSTENITIC STAINLESS STEEL DURING HIGH-PRESSURE TORSION (HPT) PROCESS IN THE NEW STAMP DESIGN.
- Authors
VOLOKITIN, A.; VOLOKITINA, I.; PANIN, E.; NAIZABEKOV, A.; LEZHNEV, S.
- Abstract
The investigation of strain state and microstructure evolution of AISI-316 austenitic stainless steel during highpressure torsion process in the new stamp design was performed. The study using Deform-3D program was conducted. The deformation was carried out at ambient temperature. The results of strain state study showed that after 4 passes the processed workpiece is obtained the level of equivalent strain more than 5. But the distribution of strain has a gradient view in the cross section. The simulation results of the microstructure evolution showed that after 4 passes of deformation the initial grain size of 12 μm can be reduced up to 0,8 μm. But the distribution of grain size in the cross section also has a non - uniform gradient view.
- Subjects
AUSTENITIC stainless steel; STRAINS &; stresses (Mechanics); MICROSTRUCTURE; PARTICLE size distribution; GRAIN size
- Publication
Metalurgija, 2021, Vol 60, Issue 3/4, p325
- ISSN
0543-5846
- Publication type
Article