STUDY OF THE EFFECT OF RADIAL-SHEAR ROLLING ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AUSTENITIC STAINLESS STEEL AISI-321

1 NAIZABEKOV Abdrakhman
Co-authors:
1 LEZHNEV Sergey 2 ARBUZ Alexandr 3 PANIN Yevgeniy
Institutions:
1 Rudny Industrial institute, Rudny, Kazakhstan, sergey_legnev@mail.ru
2 Nazarbayev University, Astana, Kazakhstan, zubra_kz@mail.ru
3 Karaganda state industrial university, Temirtau, Kazakhstan, cooper802@gmail.com
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
283-288
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
49 views / 16 downloads
Abstract

The article presents the results of the study of the microstructure and mechanical properties of austenitic stainless steel AISI-321 after radial-shear rolling. The studies carried out in this work allowed to prove the possibility of obtaining the ultra-fine-grained structure in long-length blanks of austenitic stainless steel AISI-321 after radial-shear rolling, as well as to achieve a significant increase in the initial mechanical properties of this steel. Thus, in the course of experimental studies, bars from AISI-321 steel with a diameter of 13 mm with a grain size of 300-600 nm were obtained, while having an inhomogeneity in the cross section of the bar. The mechanical properties and microhardness of steel AISI-321 were increased more than 2 times compared to the original values.

Keywords: Radial-shear rolling, ultrafine-grained structure, stainless steel, mechanical properties, severe plastic deformation
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