| 摘要 |
PROBLEM TO BE SOLVED: To provide a wear resistant titanium material subjected to Ni-P plating which has high reliability and ensures characteristics such as fatigue life, wear resistance or adherability. SOLUTION: The titanium material is provided with a Ni-P plated film. The Ni-P plated film is a crystalline plated film which is formed from a Ni-alloy containing, by mass,≥85% Ni, 1-5% P and 0.1-1% NH<SB>4</SB>group and has an average crystallite size of 1-5 nm, in the Ni-P plated film texture analysis by an X-ray diffraction method. At least one layer of a Ni or Ni-alloy layer containing≥99% Ni and a Pd or Pd-alloy layer containing≥90% Pd is formed at the interface between the titanium material and the Ni-P plated film. The Ni-P plated film has a hardness of≥500 Hv in as-plated state. COPYRIGHT: (C)2007,JPO&INPIT
|
