Analysis of Magnetic Anisotropy and Non-Homogeneity of S235 Ship Structure Steel after Plastic Straining by the Use of Barkhausen Noise

Autor:	Martin Jurkovič, Tomáš Kalina, Katarína Zgútová, Miroslav Neslušan, Martin Pitoňák
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Barkhausen noise S235 steel plastic straining Technology Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Zdroj:	Materials, Vol 13, Iss 20, p 4588 (2020)
Druh dokumentu:	article
ISSN:	1996-1944
DOI:	10.3390/ma13204588
Popis:	This study investigates the microstructure, residual stress state, and the corresponding magnetic anisotropy of the ship structure samples made of S235 steel after uniaxial tensile deformation. A non-destructive magnetic technique based on Barkhausen noise is employed for fast and reliable monitoring of samples exposed to the variable degrees of plastic straining. It was found that the progressively developed plastic straining of the matrix results in an alteration of the easy axis of magnetization, stress anisotropy (expressed in residual stresses state) as well as the corresponding Barkhausen noise emission. Moreover, remarkable non-homogeneity can be found within the plastically strained region, especially when the localized plastic straining takes place.
Databáze:	Directory of Open Access Journals
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