Magnetoelastic Demagnetization of Steel under Cyclic Loading

Magnetoelastic demagnetization of steel samples under cyclic tensile loads has been analyzed. It has been established that values of residual magnetization that correspond to peak loads are characterized by the power-law dependence on the number of loading cycles. In some cases, in the region of hig...

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Bibliographic Details
Published in:Physics of metals and metallography 2018, Vol.119 (1), p.18-25
Main Authors: Muratov, K. R., Novikov, V. F., Neradovskii, D. F., Kazakov, R. Kh
Format: Article
Language:English
Subjects:
Analysis
Chemistry and Materials Science
Cyclic loads
Demagnetization
Electrical and Magnetic Properties
Fatigue limit
Laws, regulations and rules
Load
Magnetization
Materials Science
Metallic Materials
Nondestructive testing
Peak load
Steel
Tensile stress
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Summary:Magnetoelastic demagnetization of steel samples under cyclic tensile loads has been analyzed. It has been established that values of residual magnetization that correspond to peak loads are characterized by the power-law dependence on the number of loading cycles. In some cases, in the region of high loads, the qualitative transition to exponential dependence has been observed. Coefficients of the power-law approximation of peak magnetization depend on the value of amplitude load and have specific characteristics in the vicinity of characteristic loads. The ratios of approximated slide load coefficients depending on the load are common for the three considered samples, and there is an outburst in the vicinity of the fatigue limit, which can be used as the basis for developing the rapid nondestructive method for determination of this limit.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X1801012X