Cause Analysis and Countermeasures for Inclusion Defects in Titanium Alloy Castings
Titanium alloys have excellent properties,which have a broad application market in the aerospace field.The casting can provide a low-cost net-near forming technology for titanium alloy forming.While,the inclusion is a serious defect in the forming process of titanium alloy casting,which has a great impact on the internal quality and mechanical properties of titanium alloy castings.The common types of inclusion defects in titanium alloy castings were introduced,the causes of inclusion in titanium alloy castings were analyzed,and the positions which were prone to form inclusion defects were summarized.In order to prevent the inclusion defects,the control of raw materials and melting qulaity,control of molding and pouring process,optimization of casting structure and casting process were put forward.Through these measures,the inclusion problems of titanium alloy castings can be effectively solved,the production cost of the castings can be reduced,and the product quality can be improved.
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