129 粒子分散複合めっきの真空中トライボ性能

概要

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Roller test and ring/disk test were carried out under non-lubricating condition in high vacuum to investigate the tribological performance of particle dispersed composite platings based on electroless Ni-P alloy. Three kinds of composite platings, in which PTFE particles, BN particles, and SiC particles were dispersed, were employed. The wear rate of both plated layers with BN particles and with PTFE particles increased with increasing content of dispersed particles. The wear rate of the layer with PTFE particles was greater than that with BN particles. The influence of elastic modulus of dispersed particles on stresses in the plated layer was investigated with FEM analysis. The maximum values of Mises stress in the plated layer increased with increasing particle content and with decreasing elastic modulus of particles. The wear behavior obtained in the experiment could be well explained by the calculated stress field.
2002-04-18