Progress in research and application of aerospace titanium castings

Development needs of aero engine high performance led development leads the high temperature aerospace titanium castings, titanium alloy using the temperature gradually increased,from twentieth Century 50 to alloy as the representative, through to the alloy as the representative of the. At present, represents the international advanced high-temperature titanium alloy has USA, Britain, Russia and Chinese. Composition andperformance features of high temperature titanium alloy. Through research, the author thinks that the development direction of titanium alloy is mainly: (1) standardevaluation of fire retardant properties of aerospace titanium castings and method. Flame retardantperformance evaluation of titanium alloy right is one of the key techniques of flame retardant Titanium alloy sheet, including the simulation methods and detection technology of combustion ofaerospace titanium castings. At present, the flame retardant performanceevaluation method has no uniform standards, countries have adopted different methods to test. At present, the flame retardant performance evaluation method has no uniform standards, countries have adopted different methods to test. Flame retardant performance evaluation method of titanium alloy and therefore the formulation of a unified standard will effectively promote the national titanium alloyexchange. (2) increase the mechanical properties of titanium alloy plates. Compared with thetitanium alloy, titanium alloy is poor mechanical properties, low working temperature.Research on how to improve the mechanical properties of this alloy for deeper. (3)reduce the cost of titanium alloy. Titanium alloy containing large amount of noble metal elements of V, resulting in higher costs, limiting its application. The domesticscholars have studied to replace V with Mo part of low price.