An Experimental Investigation of Semi-Interpenetrating Network Ceramic Skeleton-Reinforced Al-Alloy Composites Dry Sliding Against Cr12 Die Steel

Abstract

Semi-interpenetrating network composite containing 33 vol% ceramics (5Al 2 O 3 Á8SiO 2 ) and 67 vol% Alalloy dry sliding against Cr12 cold-work die steel was measured on a SRV4 testing machine. The test procedures include the load sensitivities of the friction and wear at 70°C and 270°C. Test results show that the friction and wear decreased with the increase of load, whereas the specific energy conversion per countermaterial surface unit increased. The friction level and the specific energy conversion at 70°C were superior to those at 270°C. Scanning electron microscopy and energy dispersive X-ray spectroscopy analysis revealed at 270°C the existence of the thicker tribofilms and, with them, more Fe oxides and less Al oxide at the worn composite surfaces in comparison with those at 70°C. A good accordance was obtained between test and analysis results.

Cupronickel B10 and YG6 interface friction characteristics tested on a friction device for metal cutting

“…Therefore, some scientists used drying-sliding friction simulation experiments to research the variation of friction against load. 6,11 Tool-chip friction is affected by the combined effects of an uneven load, the friction speed, the friction temperature, the friction area, the cutting depth, and other effects. 12 To resolve the individual effects of these factors, single-factor simulation experiments are necessary.…”

“…[13][14][15][16] The second, a Type-Schwing-Reib-Verschleiss (SRV) friction device was used to analyze the friction performance of the tool and workpiece material in a linear contact. 11,12,17 The third, a dry-cutting friction device was developed to simulate tool-chip friction. 4,8,18,19 The last, the scratch test is also a method that can be used to study tool-chip friction.…”