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A kind of iron-titanium-molybdenum alloy and preparation method thereof

A molybdenum alloy, iron-titanium technology, applied in the field of alloys, can solve problems such as toxicity of Ti-Al-V titanium alloys, and achieve the effects of improving strength and toughness, improving wear resistance, and reducing porosity

Active Publication Date: 2021-05-11
ALLIED ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an iron-titanium-molybdenum alloy and a preparation method thereof. The alloy solves the problem of toxicity of existing Ti-Al-V titanium alloys, does not contain Al and V, has no toxicity, and can obtain uniform and fine Microstructure, better than commonly used Ti-Al-V alloys

Method used

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  • A kind of iron-titanium-molybdenum alloy and preparation method thereof
  • A kind of iron-titanium-molybdenum alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] (1) Select pure titanium particles with a purity of 99.9% and a particle size of 10-50 μm (average 30 μm) as the base material, and successively add pure molybdenum powder with a particle size of less than 10 μm and carbonyl iron powder with a particle size of less than 5 μm to the pure titanium In the particles, the iron-titanium-molybdenum alloy contains the following components in weight percentage: 88wt%-92wt% titanium, 6wt% molybdenum, 2wt%-6wt% iron;

[0030] (2) Put the powder prepared in step (1) into a ball mill bottle, then add zirconia balls and a dispersant (such as absolute ethanol), and the dispersant plays the role of environmental protection oil removal; wherein, the mixed powder, zirconia The volume ratio of the balls to the dispersant is 1:1:1; the ball mill bottle is packaged and placed in a 3D powder mixer for continuous powder mixing for 24 hours, then the mixed powder is separated from the balls and dried in an oven at 60°C for 12 hours Hours, in o...

Embodiment 2

[0037] The preparation process of Example 2 is basically the same as that of Example 1, except that in step (1), the content of iron element is 4wt%.

[0038] Performance test results: the bending strength of the material is 1180MPa, the bending modulus is 84.5GPa, and the average grain size of the alloy is 30.2μm.

[0039] The porosity of the prepared alloy is measured by the known volume method, and the measured porosity is less than 5%, while the traditional powder metallurgy porosity can basically be controlled at a minimum of about 10%.

Embodiment 3

[0041] The preparation process of embodiment 3 is basically the same as that of embodiment 1, the difference is that in step (1), the content of iron element is 6wt%.

[0042] Performance test results: the bending strength of the material is 710MPa, the bending modulus is 115GPa, and the average grain size of the alloy is 32.8μm.

[0043] The porosity of the prepared alloy is measured by the known volume method, and the measured porosity is less than 5%, while the traditional powder metallurgy porosity can basically be controlled at a minimum of about 10%.

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Abstract

The invention discloses an iron-titanium-molybdenum alloy and a preparation method thereof. The alloy comprises the following components in weight percent: 88wt% to 92wt% titanium, 6wt% molybdenum and 2wt% to 6wt% iron. The alloy of the present invention does not contain Al and V, has no toxicity, can obtain a uniform and fine microstructure, and the Fe element is easy to diffuse in the pores of the titanium alloy, which is beneficial to improving the strength, toughness and wear resistance of the alloy. Ti‑Al‑V alloys are better.

Description

technical field [0001] The invention relates to an alloy, in particular to an iron-titanium-molybdenum alloy and a preparation method thereof. Background technique [0002] At present, powder metallurgy titanium alloys have been widely used in biomedical materials, automobile industry, aerospace industry and other fields. Powder metallurgy titanium alloy has high specific strength, excellent corrosion resistance and low preparation cost, and its biocompatibility is better than stainless steel and cobalt-chromium-molybdenum alloys, but its wear resistance is poor. Researchers use various methods to improve its wear problem, among which the more economical production processes include powder metallurgy, metal injection molding and other processes. [0003] Ti-6Al-4V titanium alloy has good mechanical properties and is a typical α(hcp)+β(bcc) type titanium alloy, but clinical experiments have shown that aluminum (Al) and vanadium (V) in this alloy are toxic , it has been repo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/10B22F3/20B22F3/24C22C1/04C22C14/00C22F1/18
Inventor 刘守法豆素勤吴松林马世臣王新元
Owner ALLIED ADVANCED MATERIAL