Microstructural Charactistics of Plasma Sprayed NiCrBSi Coatings and Their Wear and Corrosion Behaviors

Nickel-based alloys are commonly used as protective coating materials for surface protection applications owing to their superior resistance corrosion, wear and high-temperature oxidation. It is urgent study the fundamental mechanism between structure corrosion properties of Nickel-base composite coatings. This paper, therefore, focuses on clarifying mechanisms microstructure influencing acid mechanical characteristics as-sprayed NiCrBSi post-heat-treated coating. The formation amorphous phase flat particles during plasma spray process were studied by using X-ray diffraction analysis, Raman spectroscopy confocal laser scanning microscope at first. Then evolutionary in accelerated experiment directly visualized electron microscopy energy spectrum analysis. coatings lastly measured microhardness friction tests. critical phenomena results help elucidate relative influence features atmospheric sprayed responses resistance, aiming contributing development a technique electrical engineering.