Al-V-Cr-Fe-Ti intermediate alloy and preparation method thereof

Abstract

The invention provides an Al-V-Cr-Fe-Ti intermediate alloy and a preparation method thereof, relating to an Al-V (Al-V-based) intermediate alloy for preparing titanium alloy and a preparation method of the Al-V (Al-V-based) intermediate alloy. The Al-V-Cr-Fe-Ti intermediate alloy is characterized by being prepared from the following components in percentage by weight: 26.0-32.0% of V, 20.0-25.0% of Cr, 6-10% of Fe, 6-10% of Ti and the balance of Al. A metallothermic reduction method is adopted in the preparation process. The Al-V-Cr-Fe-Ti intermediate alloy as a metallic compound with vanadium, chromium, titanium, ferrum and the like as main components has the characteristics of good brittleness and breakability and can be used for shortening the production process of titanium alloy and ensuring that the production process of the titanium alloy is easier to operate. Oxides are used as raw materials, so that the Al-V-Cr-Fe-Ti intermediate alloy is low in cost, stable in smelting process and good in alloy formation state; in addition, the Al-V-Cr-Fe-Ti intermediate alloy is uniform in alloying and is added into titanium sponge and aluminum shots in an intermediate alloy form, so that the segregation degree of the titanium alloy is reduced.

Description

technical field [0001] An aluminum-vanadium-chromium-iron-titanium master alloy and a preparation method thereof, relating to an aluminum-vanadium (aluminum-vanadium-based) 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 civil 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 presen...

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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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