Effects of B, Ti and Ta Implantation on the Wear Resistance of Fe and Ni-Plated Fe

摘要

The wear behavior of Fe and Ni-plated Fe implanted with B, Ti or Ta ions (single or dual implants) has been evaluated. Friction coefficients were measured during repeated unidirectional, low speed (0.1 mm/sec) dry sliding of a hardened steel ball at high contract stress (0.85 GPa). In fe, the dual implants of B + Ti reduced the coefficient of friction from 0.6 (the nonimplanted value) to 0.3 and prevented the adhesive wear damage observed on nonimplanted surfaces. Although less effective than B + Ti, B + Ta and B reduced the coefficient of friction (initially) and resisted wear better than the nonimplanted surface. In Ni-plated Fe, B implantation delayed adhesive wear and reduced the coefficient of friction from 0.5 (the nonimplanted value) to 0.4. Implantation of Ti and Ti + B produced a higher coefficient of friction (0.6) and increased adhesive wear.