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Comparison of the fretting wear of 100Cr6/100Cr6, Si 3 N 4 /Si 3 N 4 and Si 3 N 4 /100Cr6 contacts in lubricated and dry conditions
Author(s) -
Vižintin J.,
Kalin M.,
Podgornik B.,
Novak S.
Publication year - 1997
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010090405
Subject(s) - silicon nitride , materials science , silicon , fretting , metallurgy , nitride , scanning electron microscope , delamination (geology) , x ray photoelectron spectroscopy , transmission electron microscopy , bearing (navigation) , composite material , layer (electronics) , nanotechnology , chemical engineering , paleontology , cartography , biology , geography , subduction , tectonics , engineering
The fretting wear behaviour of bearing steel against bearing steel, silicon nitride against silicon nitride, and silicon nitride against bearing steel, was investigated under lubricated and dry conditions. Amplitudes in the intermediate 5 to 50 μm range, and test durations from 10 to 360 min, were studied. Light microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X‐ray spectroscopy (EDS) were employed to determine the detailed nature of the friction and wear processes. In the silicon nitride against silicon nitride contact, brittle fracture of Si 3 N 4 grains, and tribochemical reaction creating an amorphous layer on the mechanically damaged surface, were found. The main mechanism of fretting wear in the case of bearing steel against bearing steel contact was delamination. In the silicon nitride against bearing steel contact, chemical reactions predominated.