Study of the durability of ferritic - austenitic steel samples after cyclical fatigue impact
Open Access
- 1 February 2021
- journal article
- research article
- Published by IOP Publishing in IOP Conference Series: Materials Science and Engineering
- Vol. 1037 (1), 012036
- https://doi.org/10.1088/1757-899x/1037/1/012036
Abstract
The purpose of this article is to investigate the fatigue strength of corrosion resistant ferritic austenitic steels used in marine equipment. Two groups of sheet steel samples were prepared: the first group were reference parts and the second group of samples were welded. The fatigue tests were performed with specially developed vibrating equipment. The destroyed surfaces were examined by optical microscopy, and the phase composition by X-ray diffraction analysis. Fatigue strength was evaluated by the number of cycles needed for a crack at a certain alternating load. Fatigue tests show how multi-cyclical fatigue affects the formation and development of a fatigue crack, and metallographic and X-ray diffraction analysis shows the phase changes occurring in the structure of SAF 2507 steel.This publication has 4 references indexed in Scilit:
- The formation of subsurface non-defect fatigue crack originsInternational Journal of Fatigue, 2006
- Experimental characterization and two-dimensional simulation of short-crack propagation in an austenitic–ferritic duplex steelInternational Journal of Fatigue, 2006
- Fatigue deformation-induced response in a superduplex stainless steelMetallurgical and Materials Transactions, 2002
- Load sharing between austenite and ferrite in a duplex stainless steel during cyclic loadingMetallurgical and Materials Transactions, 2000