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Abstract: The
composite fretting tests with GCr15/60Si2Mn ball-on-flat contact are
carried out under the oblique angles of 45° and 60°. The maximum imposed
loads are varied from 200 N to 800 N at a constant loading speed of 6
mm/min. The kinetic behaviours of composite fretting tests are analyzed
in detail in combination with microscopic examinations through optical
microscopy and confocual laser scanning microscope. Corresponding to the
three types of F~D curve, the kinetic processes of composite fretting
might be outlined as three stages. The main feature of wear in stage I
is slip, and the main wear mechanism is particles detachment by
delamination in stage II and III with different extent of damages.
Key words: Fretting wear Composite fretting
Tangential
fretting Radial fretting
CLC No: TG142.33
TG117.3
国家自然科学基金项目(50105017)和西南交通大学校基金资助项目.
Received 20040308, received in revised form 20040730
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