000021323 001__ 21323
000021323 005__ 20170522124349.0
000021323 04107 $$aeng
000021323 046__ $$k2017-05-15
000021323 100__ $$aKaroľ, M.
000021323 24500 $$aFATIGUE CRACK INITIATION AND GROWTH IN 316L STEEL IN TORSIONAL CYCLIC LOADING

000021323 24630 $$n23.$$pEngineering Mechanics 2017
000021323 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021323 506__ $$arestricted
000021323 520__ $$2eng$$aFatigue 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.

000021323 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021323 653__ $$a316L austenitic steel, Fatigue crack initiation, Crack growth, Torsional loading, Crack path.

000021323 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021323 720__ $$aKaroľ, M.$$iKruml, T.$$iMazánová, V.$$iChlupová, A.
000021323 8560_ $$ffischerc@itam.cas.cz
000021323 8564_ $$s972579$$uhttps://invenio.itam.cas.cz/record/21323/files/0434.pdf$$yOriginal version of the author's contribution in proceedings, page 434, section FRA.
000021323 962__ $$r21225
000021323 980__ $$aPAPER