Aluminum-tantalum-molybdenum intermediate alloy and preparing method thereof

Abstract

The invention relates to an aluminum-tantalum-molybdenum intermediate alloy and a preparing method thereof, in particular to an intermediate alloy for titanium alloy production and a preparing method thereof. The intermediate alloy is characterized by comprising, by weight, 27.0% to 32.0% of Ta, 18.0% to 23.0% of Mo, and the balance of Al; metallothermic reduction is adopted in preparation. The intermediate alloy is a metallic compound comprising mainly tantalum, molybdenum and aluminum and features crispiness and breakage proneness; the production process of the titanium alloys is shortened; the production of the titanium alloys is easier to operate. By the use of oxides as raw material, the cost is low, the smelting process is stable, and the alloy is in good formation state; alloying is uniform; by adding the intermediate alloy into titanium sponge and aluminum shots, segregation degree of the titanium alloys is lowered.

Description

technical field [0001] An aluminum-tantalum-molybdenum master alloy and a preparation method thereof relate to a master alloy used for preparing titanium alloys and a preparation method thereof. Background technique [0002] Titanium alloys are widely used in military industry, aerospace industry and civilian industry, and master alloys are important raw materials for the production of titanium alloys. At present, most titanium alloy master alloys use binary alloys and ternary alloys. The master alloys produced with simple metals as raw materials have complex production processes and high costs. In order to meet the performance requirements during use, several binary alloys or ternary alloys need to be added. Therefore, it is easy to cause the instability of product performance and bring difficulties to the intermediate process of producing titanium alloy. Contents of the invention [0003] The purpose of the present invention is to provide an aluminum-tantalum-molybdenum...

AI Technical Summary

Problems solved by technology

At present, most titanium alloy master alloys use binary alloys and ternary alloys. The master alloys produced with simple metals as raw materials have complex production processes and high costs. In order to meet the performance requirements during use, several binary alloys or ternary alloys need to be added. Therefore, it is easy to cause the instability of product performance and bring difficulties to the intermediate process of producing titanium alloy.

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