Magnetic nondestructive indication of varied brittleness of 15Ch2MFA steel

0372528 - FZÚ 2012 RIV FI eng C - Conference Paper (international conference)
Tomáš, Ivan - Kadlecová, Jana - Konop, R. - Dvořáková, M.
Magnetic nondestructive indication of varied brittleness of 15Ch2MFA steel.
Proceedings of International Conference on Barkhausen Noise and Micromagnetic Testing - ICBM9. Vaajakoski: ICBM Conference Organisation, 2011, s. 55-63. ISBN 978-952-67247-4-4.
[International Conference on Barkhausen Noise and Micromagnetic Testing /9./ - ICBM9. Hejnice (CZ), 27.06.2011-30.06.2011]
R&D Projects: GA ČR GA101/09/1323
Institutional research plan: CEZ:AV0Z10100520
Keywords : nuclear pressure vessels * Charpy destructive testing * magnetic non-destructive testing
Subject RIV: BM - Solid Matter Physics ; Magnetism

Thermal processing was applied on 15Ch2MFA nuclear reactor steel samples, resulting in shift of their critical temperature of brittleness from -30oC up to +140oC. Considering these samples to simulate embrittlement of the steel as if caused by neutron irradiation, the series was subjected to the nondestructive method of Magnetic Adaptive Testing (MAT) and the results were compared with those of the destructive Charpy impact tests. MAT was found to be a highly sensitive multiparametric nondestructive way of indication of the reactor steel embrittlement.
Permanent Link: http://hdl.handle.net/11104/0205827