Evaluation of plastic deformation in steels by magnetic hysteresis measurements

0374400 - FZÚ 2012 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Vértesy, G. - Ueda, H. - Uchimoto, T. - Takagi, T. - Tomáš, Ivan - Vértesy, Z.
Evaluation of plastic deformation in steels by magnetic hysteresis measurements.
Electromagnetic Nondestructive Evaluation (XIV). Lansdale, PA: IOS Press, 2011 - (Chady, T.; Gratkowski, S.; Takagi, T.; Udpa, S.), s. 371-378. ISBN 978-1-60750-749-9.
[International Workshop on Electromagnetic Nondestructive Evaluation (ENDE 2010) (15.). Szczecin (PL), 13.06.2010-16.06.2010]
Grant CEP: GA ČR GA101/09/1323
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: Magnetic Adaptive Testing * magnetic hysteresis * plastic deformation * steel
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

Tensile tests of plastically deformed specimens were performed in order to investigate the relation between variation of magnetic characteristics and residual plastic strain. Deformed stainless steel (SUS316L) and carbon steel (SS400) speciments were investigated by the method of Magnetic Adaptive Testing, measuring and evaluating series of minor magnetic hysteresis loops.Correlations were found between magnetic parameters and residual strain of the specimens. Magnetic descriptors also on the orientation of magnetizing field with respect to the direction of elongation. Based on these results, MAT is suggested as a highly promising non-destructive method for monitoring plastic deformation in different types of steel .
Trvalý link: http://hdl.handle.net/11104/0207334