Evaluation of ductile cast iron microstructure by magnetic hysteresis and Barkhausen noise methods

0330690 - FZÚ 2010 RIV NL eng C - Conference Paper (international conference)
Stupakov, Oleksandr - Uchimoto, T. - Takagi, T. - Sanaee, S.A. - Tomáš, Ivan
Evaluation of ductile cast iron microstructure by magnetic hysteresis and Barkhausen noise methods.
[Odhad mikrostruktury tvárné litiny metodami magnetické hystéreze a šumu Barkhausena.]
Electromagnetic Nondestructive Evaluation (XII). Amsterdam: IOS Press, 2009 - (Shin, Y.; Lee, H.; Song, S.), s. 232-240. Studies in Applied Electromagnetics and Mechanics, 32. ISBN 978-1-60750-023-0.
[International Workshop on Electromagnetic Nondestructive Evaluation (ENDE 2008) (13.). Seoul (KR), 10.06.2008-12.06.2008]
R&D Projects: GA AV ČR 1QS100100508
Institutional research plan: CEZ:AV0Z10100520
Keywords : cast iron * magnetic hysteresis * Barkhausen noise * surface field extrapolation * single yoke magnet
Subject RIV: BM - Solid Matter Physics ; Magnetism
http://dx.doi.org/10.3233/978-1-60750-023-0-232

The work investigates applicability of the magnetic hysteresis and Barkhausen noise techniques for testing of ductile cast iron microstructure. The magnetic measurements showed a unique corresponence with the hardness, which is commonly used for the matrix structure testing. However, the magnetic response to the graphite morphology revealed lower sensitivity than to the matrix variations.

Práce studuje použitelnost metody magnetické hysteréze a šumu Barkhausena na testování mikrostruktury tvárné litiny. Magnetická měření ukazují jednoznačnou korelaci s tvrdostí, jaká je obyčejně používaná na testování struktury matrice. Nicméně magnetická odezva k morfologii grafitu vykázala nižší citlivost než do změny matrice.
Permanent Link: http://hdl.handle.net/11104/0005486