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Hot corrosion of intermetallic compound Ni_3Al-0.2B was studied by electrochemicaltechniques combined with physical analyses.It was found that hot corrosion resistanceof Ni_3Al-0.2B is rather inferior.Sulfidation-oxidation is responsible for the acceleratedcorrosion.The addition of 6at.-% Cr and 0.5at.-% Zr to Ni_3Al-0.2B may accelerateits corrosion.
Hot corrosion of intermetallic compound Ni_3Al-0.2B was studied by electrochemicaltechniques combined with physical analyzes. It was found that the hot corrosion resistance of Ni_3Al-0.2B is rather inferior. Sulfidation-oxidation is responsible for the accelerated corrosion. and 0.5 at .-% Zr to Ni_3Al-0.2B may accelerateits corrosion.