Number of the records: 1

Fatigue crack initiation and growth in 316L steel in torsional cyclic loading

SYSNO ASEP	0494057
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Fatigue crack initiation and growth in 316L steel in torsional cyclic loading
Author(s)	Karol, Michal (UFM-A) Chlupová, Alice (UFM-A)_{RID, ORCID} Mazánová, Veronika (UFM-A) Kruml, Tomáš (UFM-A)_{RID, ORCID}
Number of authors	4
Source Title	Engineering Mechanics 2017 : 23rd international conference : May 15-18, 2017, Svratka, Czech Republic : book of full texts. - Brno : University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, 2017 / Fuis V. - ISBN 978-80-214-5497-2
Pages	s. 434-437
Number of pages	4 s.
Publication form	Print - P
Action	Engineering Mechanics 2017 - International Conference /23./
Event date	15.05.2017 - 18.05.2017
VEvent location	Svratka
Country	CZ - Czech Republic
Event type	EUR
Language	eng - English
Country	CZ - Czech Republic
Keywords	316L austenitic steel ; fatigue crack initiation ; Crack growth ; Torsional loading ; Crack path
Subject RIV	JG - Metallurgy
OECD category	Materials engineering
R&D Projects	LM2015069 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GA15-08826S GA ČR - Czech Science Foundation (CSF)
Institutional support	UFM-A - RVO:68081723
UT WOS	000411657600098
Annotation	Fatigue crack initiation and growth study in 316L austenitic stainless steel was made in cyclic torsion. The experiments on hollow cylindrical specimens were performed at room temperature using fully reversed shear strain controlled cycles. The specimens used were polished mechanically and electrolytically to enable surface damage and crack propagation observation using optical light microscope, SEM. It was found that high density of extrusions and intrusions are formed on the specimen surface due to cyclic loading. TEM observations revealed that dislocation arrangement in well-known ladder-like structure is responsible for the localization of cyclic plastic deformation and for the origin of surface roughness in which the fatigue crack nucleate. The path of fatigue cracks leading to failure was observed, too. The crack path was found to be dependent upon the applied shear strain amplitude.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2019

Number of the records: 1