D-18 SUBSURFACE DEFORMATION OF WORN Al-Cu AND Al-Mg ALLOYS(Session: Wear)
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概要
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This paper reports an investigation of two types of aluminium alloys; A2124 and A5056, against an M2 tool steel counterface. With block-on-ring configuration, the wear test was carried out at different loads ranging from 23-140N, in a dry sliding condition. Detailed seconday electron microscopy (SEM) performed on the longitudinal cross sections of the worn alloys indicates that the subsurface deformed layer beneath the worn surfaces is composed of a number of distinct layers like the mechanically mixed layer (MML), the shear deformed and bulk layers with increased hardness as the surface was approached. The relationship between the characteristic of the MMLs especially on the work hardening as a function of alloy type is also discussed.
- 2006-11-08