Friction and wear behavior of electro-deposition Ni-cBN composite coatings

摘要

In this paper, Ni-cubic boron nitride (cBN) composite coating with different volume fractions (from 0.3 to 8.5 vol.%) of cBN particle was successfully prepared by electro-deposition method on titanium alloy substrates. The effect of volume fraction of cBN particles and applied load on the friction and wear behaviors of the composite coatings were investigated at a speed of 0.0333 m·s~(-1). The experimental results indicate that the friction coefficient of the composite coatings decreased with increasing the volume fraction of cBN particles and the applied load. Moreover, within the range of volume fraction of cBN particles from 0 to 8.5%, the wear rate of the composite coatings showed a decreasing trend from 0.2417 to 0.0267 mg·m~(-1) with increasing volume of cBN particles. The wear rate of the composite coating increased with the increase of the applied load.