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Clarification of how oxidation and counterface materials influence the high temperature tribological properties of TiAl alloy is the main object of this research. As evident from the comparison tests in air and argon, surface oxidation is detrimental to the tribological properties of the alloy at low temperature, but favorable above 600°C.Counterface (Si3N4, SiC and Al2O3) is an important factor that...
In this paper, Cu/AlMgB14 composites with by weight percent, 5, 10 and 20 % of the AlMgB14 (referred to CA-5, CA-10 and CA-20) were fabricated by hot-press sintering method. The mechanical and dry-sliding tribological properties of the three composites were investigated. The results indicated that the densities of the Cu/AlMgB14 composites were lower than copper, whereas the hardness higher. The friction...
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