Strength and Fracture Mechanism of an Ultrafine-Grained Austenitic Steel for Medical Applications.

Autor: Klevtsov GV; Department of Nanotechnology, Materials Science, and Mechanics, Togliatti State University, 445020 Togliatti, Russia., Valiev RZ; Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 450008 Ufa, Russia., Klevtsova NA; Department of Nanotechnology, Materials Science, and Mechanics, Togliatti State University, 445020 Togliatti, Russia., Tyurkov MN; Department of Nanotechnology, Materials Science, and Mechanics, Togliatti State University, 445020 Togliatti, Russia., Linderov ML; Research Institute of Progressive Technologies, Togliatti State University, 445020 Togliatti, Russia., Abramova MM; Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 450008 Ufa, Russia., Raab AG; Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 450008 Ufa, Russia., Minasov TB; Department of Traumatology and Orthopedics, Bashkir State Medical University, 450008 Ufa, Russia.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2021 Dec 15; Vol. 14 (24). Date of Electronic Publication: 2021 Dec 15.
DOI: 10.3390/ma14247739
Abstrakt: In this paper, we study the corrosion-resistant austenitic steel Fe-0.02C-18Cr-8Ni for medical applications. The microstructure and mechanical properties (tensile mechanical properties, torsional strength, impact toughness, and static and cyclic crack resistance) under different types of loading of the steel are investigated. The results are compared for the two states of the steel: the initial (coarse-grained) state and the ultrafine-grained state produced by severe plastic deformation processing via equal-channel angular pressing. It is demonstrated that the ultrafine-grained steel 0.08C-18Cr-9Ni has essentially better properties and is very promising for the manufacture of medical products for various applications that experience various static and cyclic loads during operation.
Databáze: MEDLINE
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