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Vanadium-aluminium interalloy with special carbon content range and preparation method thereof

A technology of master alloy and carbon content, which is applied in the field of vanadium-aluminum master alloy and its preparation, can solve the problems of hard segregation, damage to fatigue strength and plasticity, etc., and achieve the effects of good oxidation resistance, increased strength and good brittleness

Active Publication Date: 2011-09-14
宝钛特种金属有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

C element is an interstitial element, and the segregation produced is usually very hard, which will damage the fatigue strength and plasticity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. Raw material weight ratio: V 2 o 5 3.545kg, Al 3.205kg, C 0.004kg, CaF 2 0.245kg.

[0017] 2. Preparation method: smelting by self-propagating method. Firstly, the above-mentioned raw materials are dried, the drying temperature is 80-120° C., and the drying time is not less than 24 hours. Then weigh the raw materials according to the weight ratio of the above raw materials, mix the weighed raw materials thoroughly and evenly, and put them into a special crucible. Ignite with combustibles, and the combustion spreads rapidly to the entire material area, and the heat generated by the chemical reaction can meet the energy required to maintain the stability and complete combustion of the material itself. At the same time, the material is automatically stirred in the high-temperature molten pool to complete the oxidation-reduction reaction and other chemical reactions, and the slag floats up to complete the smelting. The reaction time is 20 seconds. After the reacti...

Embodiment 2

[0020] 1. Raw material weight ratio: V 2 o 5 45.565kg, Al 41.195kg, C 0.0514kg, CaF 2 3.190kg.

[0021] 2. Preparation method: basically the same as Example 1, the difference is that the reaction time is 55s.

[0022] 3. Test result of finished product (weight%): V 58.25, C 0.13, O 0.08, Fe 0.13, Si 0.10, and the balance is Al.

Embodiment 3

[0024] 1. Raw material weight ratio: V 2 o 5 3.540kg, Al 3.210kg, C 0.005kg, CaF 2 0.245kg.

[0025] 2. Preparation method: basically the same as Example 1, the difference is that the reaction time is 55s.

[0026] 3. Test result of finished product (weight%): V 56.70, C 0.14, O 0.07, Fe 0.11, Si 0.09, and the balance is Al.

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Abstract

The present invention relates to a vanadium-aluminium interalloy with a special carbon content range and a preparation method thereof. The vanadium-aluminium interalloy comprises the following components by weight: 54 to 60 percent of V, 0.09 to 0.18 percent of C, and the balance of Al. The vanadium-aluminium interalloy is melted by a self-propagating method and using the raw materials of V2O5, Al, C and CaF2 in a weight ratio of 1: (0.86-1.06): (0.0008-0.005): (0.05-0.66). The charging temperature of the raw materials is between 35 and 55 DEG C. The vanadium-aluminium interalloy can improve the segregation of titanium alloy ingots and the strength of the titanium alloys and is easy to smash, store and transport. The preparation method is simple, low in cost and environment-friendly.

Description

technical field [0001] The invention relates to a vanadium-aluminum master alloy with a special carbon content range and a preparation method thereof. Background technique [0002] Vanadium-aluminum master alloy is an important raw material in the production of titanium alloy. The quality of vanadium-aluminum master alloy directly affects the performance of titanium alloy. With the continuous development of titanium alloys, the requirements for titanium alloys are also increasing. The segregation of titanium alloy affects the structure of titanium alloy, and the structural defects of titanium alloy, such as segregation of interstitial elements, have a fatal impact on the service life and performance of titanium alloy. C element is an interstitial element, and the segregation produced is usually very hard, which will damage the fatigue strength and plasticity. Titanium carbides have a high melting point, and it is difficult to melt and fully disperse when titanium alloy is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C27/02C22C1/05C22C14/00C22C1/03
Inventor 李彦宏尹淑霞和平志宋文君吴丕杰刘红李献军王昌建陈峰刘敏
Owner 宝钛特种金属有限公司
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