Metalurgija, Vol. 60 No. 3-4, 2021.
Prethodno priopćenje
Strain state and microstructure evolution of AISI-316 austenitic stainless steel during high-pressure torsion (HPT) process in the new stamp design
A. Volokitin
; Rudny industrial institute, Rudny, Kazakhstan
I. Volokitina
; Rudny industrial institute, Rudny, Kazakhstan
E. Panin
orcid.org/0000-0001-6830-0630
; Karaganda industrial university, Temirtau, Kazakhstan
A. Naizabekov
; Rudny industrial institute, Rudny, Kazakhstan
S. Lezhnev
; Rudny industrial institute, Rudny, Kazakhstan
Sažetak
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.
Ključne riječi
stainless steel; high-pressure torsion; workpiece; strain state; microstructure
Hrčak ID:
256099
URI
Datum izdavanja:
1.7.2021.
Posjeta: 591 *