Fine grain titanium fiber pumice magnesium alloy composite material and preparation method thereof

A technology of composite materials and titanium fibers, which is applied in the field of metal materials, can solve problems such as complex processes and achieve the effect of preventing the growth of grains

Inactive Publication Date: 2010-12-22
淮安市清河区科技转化服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, 3-20% by volume of electroless nickel-plated short carbon fibers are added to the magnesium matrix. Although the matrix is ​​strengthened and the damping performance is endowed with better performance, its damping performance is better than that of pure magnesium, which can reach High damping range of 0.015, but the process is more complicated

Method used

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  • Fine grain titanium fiber pumice magnesium alloy composite material and preparation method thereof
  • Fine grain titanium fiber pumice magnesium alloy composite material and preparation method thereof
  • Fine grain titanium fiber pumice magnesium alloy composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of fine-grained titanium fiber: Al is 7% by weight percentage, Cr is 3%, V is 5%, Mo is 3%, Gd is 0.05%, Sn is 0.003%, and the rest is Ti for batching;

[0029] The raw material is melted in a liquid riser with a heating device to form a Ti alloy liquid with a melting temperature of 1780-1820°C; Moving down, when the plunger moves up, the liquid level in the riser can be raised, so that the alloy liquid can be pulled out by the flange of the runner to form fine-grained titanium fibers. The runner adopts a water-cooled copper alloy runner with a flange on the rim . The alloy liquid contacts the flange of the rotating water-cooled copper alloy runner through the liquid riser, and the flange of the water-cooled copper alloy runner pulls the alloy liquid out to form fine-grained titanium fibers. The linear speed of the runner flange is 17-20m / s , Turn on the water-cooling system of the runner before the runner starts running, and the temperature of the water en...

Embodiment 2

[0035] Magnesium alloy substrate by weight percentage: Al is 8%, Gd is 0.05%, Gr is 0.05%, Mo is 0.005%, Si is 0.09%, V is 0.009%, Sn is 0.09%, and the rest is Mg for batching;

[0036] Fine-grained titanium fiber by weight percentage: titanium fiber Al is 9%, Cr is 5%, V is 7%, Mo is 4.9%, Gd is 0.15%, Sn is 0.09%, and the rest is Ti for batching; The volume ratio of the titanium-based alloy fiber and pumice is 1:1, the addition of silica sol is 1-2% of the total weight of the titanium-based alloy fiber and pumice mixture, and the titanium-based alloy fiber and pumice account for the magnesium alloy matrix. 45%-55% of the volume. Its preparation process is with embodiment one.

Embodiment 3

[0038] Magnesium alloy substrate by weight percentage: Al is 6%, Gd is 0.04%, Gr is 0.03%, Mo is 0.003%, Si is 0.06%, V is 0.0059%, Sn is 0.009%, and the rest is Mg for batching;

[0039] The content of fine-grained titanium fiber by weight percentage: Al is 8%, Cr is 4%, V is 6%, Mo is 4%, Gd is 0.1%, Sn is 0.008%, and the rest is Ti for batching; when preparing the preform The volume ratio of titanium-based material fiber and pumice is 1:1, the addition of silica sol is 1-2% of the weight of the titanium-based alloy material fiber and pumice mixture, and the titanium-based alloy material fiber and pumice account for 45% of the magnesium alloy matrix -55%. Its preparation process is with embodiment one.

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Abstract

The invention provides a lightweight fine grain titanium fiber pumice magnesium alloy composite material and a preparation method thereof. The composite material has high strength and excellent damping performance. The method has simple process and low production cost and is suitable for industrial production. The composite material takes magnesium alloy as a substrate on which fine grain titanium fibers and pumice particles are distributed, the size of grains of the fine grain titanium fibers is 1-10 mu m, the fine grain titanium fibers and the pumice particles account for 45-55% of the composite material by volume, and the weight ratio of the fine grain titanium fibers to the pumice particles is 1:1. The magnesium alloy substrate comprises the following chemical components in percentage by weight: 4%-8% of Al, 0.01%-0.05% of Gd, 0.01%-0.05% of Gr, 0.001%-0.005% of Mo, 0.03%-0.09% of Si, 0.003%-0.009% of V, 0.003%-0.09% of Sn and the balance Mg.

Description

1. Technical field [0001] The invention belongs to the field of metal materials, and relates to a high-damping fine-grained titanium fiber pumice-magnesium alloy composite material and a preparation method thereof. 2. Background technology [0002] At present, in the field of metal materials, the damping effect of fibers on magnesium has been paid attention to. [0003] Application No. CN200510027321.1 relates to a method for improving the damping performance of fiber-reinforced magnesium-based composite materials belonging to the technical field of composite materials, including the following steps: (1) removing the glue layer on the surface of carbon or graphite fibers; (2) chemical vapor deposition heat Debonding coating: use alkane gas with high carbon content as the pyrolysis gas, and the carbon produced by pyrolysis is deposited on the surface of the degummed carbon or graphite fiber to obtain a simple pyrolytic carbon coating, and the thickness of the carbon coating r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C32/00C22C49/04C22C49/14C22C47/08C22C23/00C22C1/10C22C1/04C22C111/02
Inventor 王玲赵浩峰易亮
Owner 淮安市清河区科技转化服务中心
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