Fiber-reinforced high-corrosion-resistance alloy and preparation method thereof

A high-corrosion-resistant, fiber-reinforced technology, applied in the field of preparation of high-corrosion-resistant alloys, can solve problems such as unsatisfactory strength and poor corrosion resistance, so as to improve long-term corrosion resistance, increase tensile strength, Enhanced long-term antioxidant effect

Inactive Publication Date: 2018-06-08
SICHUAN AEROSPACE POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its corrosion resistance is poor and its strength is not satisfactory

Method used

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  • Fiber-reinforced high-corrosion-resistance alloy and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0020] (1) preparing alloy fibers, the method is: according to the following weight percentages, prepare raw materials: 15% Fe, 30% C, 20% Ni, 2% W, 1% Sm, 1% V, 0.5% Mn, 0.03Ce, The balance is Al; the raw material is smelted at 1550-1580°C, and pulled by a water-cooled copper alloy runner to prepare alloy fibers, so that the diameter of the alloy fibers is 50-70 μm;

[0021] (2) placing the obtained alloy fiber in a steel mold, controlling the temperature of the steel mold to be 600-650° C., and controlling the alloy fiber to account for 35% of the cavity volume of the mold;

[0022] (3) Refining magnesium alloy liquid, the composition of magnesium alloy is calculated by weight: Y: 1%, Sn: 0.2%, Mg: 98.78%, total amount of impurities: 0.03%, wherein Fe: 0.001%, Cu: 0.001%, Si: 0.004%; the temperature of the magnesium alloy liquid is kept at 750°C;

[0023] (4) Control the vacuum in the steel mold to be -20KPa, inject the magnesium alloy liquid of step (3) into the result of ...

Embodiment 2

[0025] Except that the composition of the alloy raw material in step (1) is: 30% Fe, 20% C, 30% Ni, 2% W, 1% Sm, 1% V, 0.5% Mn, 0.03Ce, and the balance is Al , and the rest are consistent with Example 1.

Embodiment 3

[0027] In addition to the composition of the alloy raw material in step (1): 18.7% Fe, 21.3% C, 20% Ni, 2% W, 1% Sm, 1% V, 0.5% Mn, 0.03Ce, and the balance is Al , and the rest are consistent with Example 1.

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Abstract

The invention provides a preparation method of a fiber-reinforced high-corrosion-resistance alloy. The method comprises the steps that by weight, 15-30% of Fe, 20-30% of C, 20-30% of Ni, 2% of W, 1% of Sm, 1% of V, 0.5% of Mn, 0.03% of Ce and the balance Al are prepared; alloy fiber is prepared after smelting; the obtained alloy fiber is placed in a steel die, the vacuum degree in the steel die iscontrolled to be -20 KPa, magnesium alloy liquid is sufficiently mixed with the alloy fiber, the whole steel die is filled, cooling and solidification forming is carried out, and the fiber-reinforcedhigh-corrosion-resistance alloy is obtained. The long-time oxidation resistance of the magnesium alloy can be enhanced, the long-time corrosion resistance of the magnesium alloy is remarkably improved, the tensile strength can be greatly improved, and the application prospect is widened.

Description

technical field [0001] The invention belongs to the technical field of alloy preparation, and in particular relates to a method for preparing a fiber-reinforced alloy with high corrosion resistance. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. It is mainly used in aviation, aerospace, transportation, chemical, rocket and other industrial sectors, so it needs to have good oxidation resistance, corrosion resistance and strength. [0003] Chongqing University submitted an invention patent (ZL201410327889.4) in 2014 and obtained the authorization. This patent has greatly improved the oxidation resistance of the alloy through the study of the alloy composition. However, its corrosion resistance is poor and its strength is not satisfactory. At the same time, its long-term antioxidant performance also has room for improvement. [0004] Because this patent has better application prospect, it is very necessary to carry out fur...

Claims

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Application Information

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IPC IPC(8): C22C47/08C22C49/04C22C49/14C22C111/00
CPCC22C47/08C22C49/04C22C49/14
Inventor 刘清杰
Owner SICHUAN AEROSPACE POLYTECHNIC
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