Research on the Tribological Properties of Ni-W Alloy Electric Brush Plating Coatings at Elevated Temperatures

Bin Cai; Ye Fa Tan; Long He; Hua Tan; Chun Hua Zhou; Qi Feng Jing

doi:10.4028/www.scientific.net/AMM.217-219.1274

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Research on the Tribological Properties of Ni-W...

Research on the Tribological Properties of Ni-W Alloy Electric Brush Plating Coatings at Elevated Temperatures

Abstract:

In order to improve the anti-wear and anti-corrosion properties of mechanical parts used in high temperature friction conditions, the Ni-W alloy brush plating coatings were prepared and their tribological properties at elevated environment temperatures were investigated. The results show that the friction coefficients of Ni-W/GCr15 tribo-couples are in the range of 0.168～1.048, which take on the decreasing trend as the increase of environment temperatures. The wear losses of the coatings increase at elevated temperatures, and the critical temperature in which the coatings produce serious wear from slight wear is 250°C. The wear mechanism of the coatings are micro-cutting at room temperature, then it changes into adhesive wear accompanied by a certain of delamination when temperature is high than 250°C. When temperature is higher than 400°C, the main wear mechanism of the coatings is adhesive wear and delamination.

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Periodical:

Applied Mechanics and Materials (Volumes 217-219)

Pages:

1274-1278

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.1274

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Online since:

November 2012

Authors:

Bin Cai, Ye Fa Tan, Long He, Hua Tan, Chun Hua Zhou, Qi Feng Jing

Keywords:

Coating, Electric Brush Plating, Ni-W Alloy, Tribology

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