Titanium is a metal having a high degree of chemical activity. However, it emerged in many corrosive media particularly excellent corrosion resistance. The reason is titanium and has a good affinity for oxygen, react with oxygen to produce highly strong and dense layer of oxide film on the surface of the blunt.
Aerospace titanium castings
2014年9月16日星期二
Aerospace titanium castings Application Progress
Retardant performance evaluation method to develop a unified standard titanium will effectively promote the exchange of national retardant titanium. Improve the overall mechanical properties of aerospace titanium castings retardant. Compared with flame titanium precision casting titanium alloy retardant poor mechanical properties, the working temperature is lower. On how to further improve the mechanical properties of the alloy of the need for a deeper study. Reduce the flame titanium costs. Resistant titanium alloy contains a lot of noble metal elements V, resulting in higher costs, limiting its applications. Domestic scholars have adopted partial substitution of lower-priced Mo V for a certain amount of research to try.Composition and performance characteristics of high temperature titanium alloy. Problems flame aerospace titanium castings research and development direction present, except the United States and Russia, some typical titanium retardant has been applied, the study of other countries on the flame is still in the research phase aerospace titanium castings titanium alloy type flame retardant less costly and flame retardant properties of non-uniform evaluation methods have hindered the development of fire-retardant aerospace titanium castings Through research, the authors believe that the development direction of the flame Aerospace investment casting mainly: Development of uniform standards and methods of evaluation of aerospace titanium castings flame retardant properties. Properly evaluate flame retardant properties of titanium alloys is one of the key technologies of flame titanium, aerospace titanium castings including combustion simulation methods and testing techniques. Currently, the evaluation method on the flame retardancy is no uniform standard, countries have adopted different methods of testing.
订阅:
博文评论 (Atom)
没有评论:
发表评论