Please use this identifier to cite or link to this item:
|Title:||Eddy-current testing of fatigue degradation in additionally heat-treated gas powder laser clad NiCrBSi coating under contact fatigue loading|
|Authors:||Savrai, R. A.|
Makarov, A. V.
Gorkunov, E. S.
Soboleva, N. N.
Kogan, K. L.
Malygina, Y. L.
Osintseva, A. L.
|Publisher:||American Institute of Physics Inc.|
|Citation:||Eddy-current testing of fatigue degradation in additionally heat-treated gas powder laser clad NiCrBSi coating under contact fatigue loading / R. A. Savrai, A. V. Makarov, E. S. Gorkunov et al. // AIP Conference Proceedings. — 2018. — Vol. 2053. — 40088.|
|Abstract:||The paper studies the applicability of eddy-current technique to testing fatigue degradation in Ni-18.2Cr-3.3B-4.2Si coating, produced by gas powder laser cladding and subjected to additional high-temperature annealing at 1025 °C, under contact loading. It is demonstrated that eddy-current testing of fatigue degradation in Ni-18.2Cr-3.3B-4.2Si coating under contact loading after high-temperature annealing has certain limitations caused by the high brittleness of this coating. In this case, it is possible to test only a sharp increase in the sizes of contact damages, which occurs at 8×10 5 cycles under these loading conditions and results from the formation of a great number of peripheral ring cracks in the fracture zone; the eddy-current readings α decrease due to the increasing electrical resistivity of the coating. Testing can be performed by eddy-current measurements at high excitation frequencies of an eddy-current transducer (f=72-120 kHz), when the effect of the ferromagnetic steel base on the eddy-current readings α is minimum. © 2018 Author(s).|
|Conference name:||12th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2018|
|Conference date:||21 May 2018 through 25 May 2018|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.