HARDNESS AND WEAR RESISTANCE OF ELECTROLESS NICKEL DEPOSITS
(1.General Research Institute for Nonferrous Metals, Beijing100088, P. R. China
2.School of Materials Science and Engineering, Harbin Institute of Technology,Harbin 150001, P. R. China)
2.School of Materials Science and Engineering, Harbin Institute of Technology,Harbin 150001, P. R. China)
Abstract: The hardness and wear resistance of electroless nickel deposits with two types of P contents have been investigated. The results indicate that Ni-1.5%P deposit possesses as-deposited hardness and wear resistance superior to Ni-10.5%P deposit. Their hardness and wear resistance can be further improved by proper heat treatment. The optimum wear resistance of Ni-1.5%P deposit corresponds to its peak hardness (annealing at 375℃for 1 h), whereas for Ni-10.5%P deposit the optimum wear resistance is obtained after annealing at 650℃for 1 h.
Key words: electroless Ni-1.5%P deposit Ni-10.5%P deposit hardness wear resistance