Character of Fatigue Damage under Axial, Torsional and Biaxial Loading of 316L Stainless Steel

0534388 - ÚFM 2024 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
Chlupová, Alice - Poczklán, Ladislav - Man, Jiří - Mazánová, Veronika - Heczko, Milan - Kruml, Tomáš
Character of Fatigue Damage under Axial, Torsional and Biaxial Loading of 316L Stainless Steel.
Defect and Diffusion Forum. Vol. 405. Zurich: Trans Tech Publications Ltd., 2020 - (Horňák, P.; Longauerová, M.; Matvija, M.), s. 264-270. ISBN 978-3-0357-1612-2. ISSN 1012-0386.
[International Symposium on Metallography, Fractography and Materials Science /17./. Nový Smokovec, High Tatras (SK), 24.04.2019-26.04.2019]
Grant CEP: GA MŠMT LM2015069; GA MŠMT(CZ) LQ1601; GA ČR(CZ) GA18-03615S
Výzkumná infrastruktura: IPMINFRA - 90069
Institucionální podpora: RVO:68081723
Klíčová slova: 316L austenitic steel * Fatigue * Axial loading * Torsional loading * Crack initiation * Crack growth
Obor OECD: Audio engineering, reliability analysis

Characteristic features of fatigue damage of 316L austenitic stainless steel cyclically strained axially in tension-compression, reversed torsion and combined axial-torsional mode were studied. All loading modes resulted in the formation of persistent slip markings (PSMs). Predominantly one slip system was activated in the case of axial and torsional loading while at biaxial loading, activation of several slip systems was involved. PSMs acted as sites of multiple fatigue crack initiation. The path of subsequent crack growth at a macroscopic scale differed considerably in dependence on loading mode and applied amplitude. The hardening-softening curves and fatigue life curves were evaluated and results were compared and discussed in terms of the type of applied loading.
Trvalý link: http://hdl.handle.net/11104/0312611