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Magnesium-based wear-resistant damping alloy material and preparation method thereof
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A technology of vibration-damping alloys and alloy materials, applied in the field of metal materials, can solve the problems of low wear resistance of common magnesium alloys, and achieve the effects of easy industrial production, good performance of alloy materials, and low production costs
Inactive Publication Date: 2010-07-21
NANJING UNIV OF INFORMATION SCI & TECH
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Embodiment 1
[0024] According to the total weight of raw materials: Al is 5%, Sr is 2%, Sn is 2%, Fe is 0.5%, C is 0.03%, Dy is 0.5%, Y is 1.1%, La is 0.5%, and the rest is Mg. Ingredients;
[0025] Put aluminum, strontium, tin, iron, magnesium, and carbon in the above-mentioned raw materials in a heating container protected by SF6 gas to melt to form magnesium, aluminum, strontium, carbon, tin, and iron alloy liquid; C is added in the form of carbon particles, and carbon particles The size is 0.1-1mm, Sr is added in the form of magnesium-strontium alloy, wherein the mass content of Sr is 25%, and the rest is added in the form of pure metal;
[0026] When the alloy liquid is heated to 710-725°C, press the prepared rare earth metals Y, Dy, and La into the alloy liquid with a bell jar, in which the particle size of the rare earth metal is 1-3mm, and keep it warm for 5-10 minutes. Casting into corresponding castings; the formed castings are placed in a heat treatment furnace at 110-130° C. f...
Embodiment 2
[0028] According to the total weight of raw materials: Al is 9%, Sr is 4%, Sn is 3%, Fe is 3%, C is 0.09%, Dy is 1.5%, Y is 3%, La is 2%, and the rest is Mg. Batching, its preparation process is with embodiment one.
Embodiment 3
[0030] According to the total weight of raw materials: Al is 6%, Sr is 2.5%, Sn is 2.4%, Fe is 2%, C is 0.06%, Dy is 1%, Y is 2%, La is 1%, and the rest is Mg. Batching, its preparation process is with embodiment one.
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Abstract
The invention provides a magnesium-based wear-resistant damping alloy material and a preparation method thereof. A matrix of the alloy material is provided with a stable plate compound, the damping function of an alloy is improved. The method has the advantages of simple process, low production cost, and suitability for industrial production. In the alloy material, a magnesium alloy is taken as the matrix, and compound complexes are uniformly distributed on the matrix of the magnesium alloy. The alloy material comprises the following chemical compositions in percentage by weight: 5 to 9 percent of Al, 2 to 4 percent of Sr, 2 to 3 percent of Sn, 0.5 to 3 percent of Fe, 0.03 to 0.09 percent of C, 0.5 to 1.5 percent of Dy, 1.1 to 3 percent of Y, 0.5 to 2 percent of La, and the balance of Mg.
Description
1. Technical field [0001] The invention belongs to the field of metal materials, and relates to a magnesium-based damping alloy material and a preparation method thereof. 2. Technical Background [0002] At present, in the field of metal materials, magnesium alloys are widely used as wear-resistant damping and vibration-reducing materials. [0003] Application No. CN200910023238.5 discloses a high-damping magnesium alloy containing quasi-crystalline reinforcement phase and its preparation method. The alloy composition and its weight percentage are: 0.9%-1.0% zinc, 0.15%-0.2% yttrium, 0.6% of zirconium. Magnesium and zinc are both industrial pure magnesium and industrial pure zinc; alloy elements yttrium and zirconium are added in the form of magnesium-30% yttrium and magnesium-30% zirconium master alloys respectively; through preheating, smelting and forming, a quasi-crystalline reinforcement is prepared Phase high damping magnesium alloy. However, the elements of this ma...
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