Tribological Analysis of Copper-Coated Graphite Particle-Reinforced A359 Al/5 wt.% SiC Composites

[[abstract]]Copper-coated graphite particles can be mass-produced by the cementation process using simple equipment. Graphite particulates that were coated with electroless copper and 5 wt.% SiC particulates were introduced into an aluminum alloy by compocasting to make A359 Al/5 wt.% SiC(p) composite that contained 2, 4, 6, and 8 wt.% graphite particulate composite. The effects of SiC particles, quantity of graphite particles, normal loading, sliding speed and wear debris on the coefficient of friction, and the wear rate were investigated. The results thus obtained indicate that the wear properties were improved by adding small amounts of SiC and graphite particles into the A359 Al alloy. The coefficient of friction of the A359 Al/5 wt.% SiC(p) composite that contained 6.0 wt.% graphite particulates was reduced to 0.246 and the amount of graphite film that was released on the worn surface increased with the graphite particulate content. The coefficient of friction and the wear rate were insensitive to the variation in the sliding speed and normal loading.[[notice]]補正完畢[[incitationindex]]SCI[[booktype]]紙本[[booktype]]電子

GRADE CLASSIFICATION OF CORROSION DAMAGE ON THE SURFACE OF WEATHERING STEEL MEMBERS BY DIGITAL IMAGE PROCESSING

The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan

Modeling and simulation technology for the advancement of materials processing technology

The development of simulation technology and their benchmark efforts are intensively promoted at many parts of technical and industrial sectors. Beside the investigation in fundamental kinetics, application models and simulation tools database construction is quite important to expand actual usefulness in industrial activity. And also, the misfit of predicted value and actual results should be studied both from model side, database and their difference in input data which are too much simplified than actual operation. Additionally, future expansion in application of computer simulation technologies we need to focus the needs of the future manufacturing technology. In this paper, those problems and future possibility to increase usefulness of simulation work are discussed co-relating experiences with the results of recent benchmark works presented in various conference papers