Detection of milled 100Cr6 steel surface by eddy current and incremental permeance methods

0473813 - FZÚ 2018 RIV GB eng J - Journal Article
Perevertov, Oleksiy - Neslušan, M. - Stupakov, Alexandr
Detection of milled 100Cr6 steel surface by eddy current and incremental permeance methods.
NDT & E International. Roč. 87, Apr (2017), s. 15-23. ISSN 0963-8695. E-ISSN 1879-1174
R&D Projects: GA ČR GB14-36566G; GA ČR GA13-18993S
Institutional support: RVO:68378271
Keywords : Eddy currents * hard milling * incremental permeance * magnetic materials * surface characterization
OECD category: Electrical and electronic engineering
Impact factor: 2.781, year: 2017

Hard milling was applied to 100Cr6 steel of 50 HRC hardness using cutting tools with different flank wear. The modified surface layers were investigated by eddy current and incremental permeance measurements at magnetizing frequencies from 0.2 to 10 kHz. The signals were studied as a function of a low-frequency magnetic field applied to the sample. Both methods showed growth of magnetically harder peak in the measured curve with tool flank wear and magnetizing frequency increase. New parameters were introduced to evaluate the flank wear and corresponding surface damage in the material. The incremental permeance method showed much higher sensitivity comparing to the eddy current testing.
Permanent Link: http://hdl.handle.net/11104/0270947