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1 2015

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Local damages during rolling and mechano-rolling fatigue for the mechanical system shaft : roller (0.45 carbon steel – 25XGT steel, 20XH3A steel – 20XH3A steel)

Bogdanovich A., Yelovoy O., Sosnovskiy L., Komissarov V., Tyurin S.

Acta Mechanica et Automatica

2015

Vol. 9, no. 4

259--264

The report provides a description of local damages which are formed in the process of wear-fatigue tests. The analysis of local surface wave-like damages during rolling and mechano-rolling fatigue for the shaft-roller mechanical system under steady-state and multistage loading conditions is given. It is shown that the study of local wear-fatigue damage was made possible by new methods of testing and measuring wear-fatigue tests and damages, which are described in the report. New characteristics to estimate the parameters of the local wear-fatigue damage are proposed. The concept of local fatigue curves is introduced. The laws of local wear-fatigue damage for the shaft - roller system are analysed.