Comparative studies of the character of destruction in 38Cr2Ni2MoA and 12Cr2Ni4A steel gearwheel teeth operated under extreme conditions

A comparative analysis of the character of destruction occurring in gearwheels that had been preliminary strengthened by high-frequency current quenching and cementation, in the process of their operation under heavy loading was performed. The microstructure of strengthened layers has been shown to...

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Bibliographic Details
Published inJournal of friction and wear Vol. 36; no. 3; pp. 229 - 236
Main Authors Pugacheva, N. B., Trushina, E. B., Antenorova, N. P., Pugacheva, E. I.
Format Journal Article
LanguageEnglish
Published New York Allerton Press 01.05.2015
Subjects
Classical and Continuum Physics
Physics
Physics and Astronomy
steel
hardness
surface strengthening
fatigue
high-frequency currents
cementation
pitting
gearwheels
fractography
quenching
friction
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Summary:A comparative analysis of the character of destruction occurring in gearwheels that had been preliminary strengthened by high-frequency current quenching and cementation, in the process of their operation under heavy loading was performed. The microstructure of strengthened layers has been shown to be almost identical, despite the difference between the chemical compositions of the gearwheel steels and the methods used for their surface strengthening. The common mechanisms of surface destruction under operation, such as fatigue wear with the formation of pittings at its initial stage, and the formation of wear particles with further abrasive wear, have been established.
ISSN:1068-3666
1934-9386
DOI:10.3103/S1068366615030125