Premium
Wear and Wear Transition Mechanism in Silicon Carbide during Sliding
Author(s) -
Cho SeongJai,
Um ChangDo,
Kim SeockSam
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08440.x
Subject(s) - materials science , lubrication , silicon carbide , composite material , metallurgy , deformation (meteorology) , transition point , forensic engineering , mechanics , physics , engineering
Wear mechanisms in SiC during sliding have been investigated experimentally under paraffin oil lubrication. The wear and friction data indicate that a transition in wear mechanism occurs abruptly after a defined period of sliding. The transition point is reached earlier as load increases. Examination of wear samples reveals that surface material is predominantly removed by a plastic grooving process in the initial stage, and by a grain pull‐out process after the transition. It is also observed that severe plastic deformation in the form of dislocations is produced during the sliding. The abrupt occurrence of the grain pull‐out after a definite sliding time is discussed in relation to the internal stresses associated with this plastic deformation.