Title: HOT CORROSION OF Ti_3Al INTERMETALLIC COMPOUND
Abstract:Electrochemical techniques combined with physical analysis techniques wereemployed to study hot corrosion of Ti_3(?)l in molten(Na,K)_2SO_4-NaCl melt at 800℃.It isshown that hot corrosion resistance o...Electrochemical techniques combined with physical analysis techniques wereemployed to study hot corrosion of Ti_3(?)l in molten(Na,K)_2SO_4-NaCl melt at 800℃.It isshown that hot corrosion resistance of Ti_3Al is rather inferior to that of IN738 alloy.The corro-sion product is multilayer structure with outer scale of TiO_2,inner scale of complex oxideNb_2O_5,Al_2O_3 and TiO_2 rich in Nb_2O_5,and intermediate scale of complex oxide Al_2O_3 andTiO_2 rich in Al_2O_3.Outerward diffusion of titanium and inward diffusion of oxygen are re-sponsible for the rapid corrosion of Ti_3Al.Nb_2O_5 in the inner scale deteriorates the adherenceof oxide scale.Read More
Publication Year: 1993
Publication Date: 1993-01-01
Language: en
Type: article
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