MoSi2 coating on nickel based super alloys by using molten salt electrolysis

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820332
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Metal making/Resorce production engineering
• Research Institution: Tohoku University
• Principal Investigator: Takeda Osamu 東北大学, 工学(系)研究科(研究院), 准教授 (60447141)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 溶融塩電解 / ニッケル基超合金 / 二珪化モリブデン / コーティング

Outline of Final Research Achievements

In this study, the improvement of oxidation-resistance of nickel based super alloys was investigated by coating the super alloys with a mechanically and chemically stable oxidation-resistant film at high temperature. Concretely, the formation of MoSi2 film by using molten salt electrolysis was investigated. By estimating the transportation rate of ions in molten salt, the rate of electrode reaction, and the rate of atomic diffusion in alloys, the electrolytic condition for the formation of a dense and thick film with a mechanical and chemical stability was revealed.

Free Research Field

金属生産工学