A Comparison of Electroplated Gold Flash palladium-Nickel and Wrought, Clad Inlay WE#1 Capped palladium-Silver

摘要

This study examines the properties of both electroplated gold flash palladium-nickel and WE#1 capped palladium-silver. The electrical resistivities were measureed in order to understand contact resistance differences. Electricla stability during and after environmental and mechanical tests was evaluated. Environmental tests included thermal agiing at elevated temperature and Battelle flowing mixed gas exposure. Mechanical tests included formability, sliding wear and fretting. Key attributed which were measured and reported included, electrical resistiity, hardness, contact resistance, porosity level, coefficient of friction during sliding wear, and fretting cycles to failure. It was found that GFPdNi demonstrated lower electrical resistivity, higher hardness, lower initial contact resistance, lower coefficient of friction and greater durability during sliding wear. WE#1 /PdAg demonstraed acceptably low initial coefficient of frictioin, greater electrical stability during thermal aging and Battelle FMG exposure, better fromability, and greater resistance to fretting wear.