高速フレーム溶射法によるFe基金属ガラス皮膜の開発と応用

概要

論文の詳細を見る
Some of the bulk metallic glass have high strength and high corrosion resistance. We have created a thermal spray coating of Fe-based metallic glass by High Velocity Oxy-Fuel process on various substrates such as stainless steel, aluminum alloy and magnesium alloy. We have examined the structure of coatings and we have found that the coatings are single glassy layer, they has very few porosities and also it is dense. Hardness of the coating is from Hv1000 to 1100. That is harder than hard chrome plating. The anodic polarization curve of the coating has stable density of current throughout a broad band of potential. This density of current is less than 0.1% of SUS304 stainless plate. The coating on the substrate of stainless steel shows a high erosion resistance against lead-free solder with Sn-3mass% Ag-0.5mass%Cu. We have applied this coating for a solder fusing vessel of stainless steel sheet on a continuous casting machine for this lead-free solder. This machine is in operation for two years, and now no erosions nor damages have yet occurred.
2007-11-15