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MAX phase reinforced zirconium titanium aluminum vanadium alloy and preparation method thereof

A zirconium-titanium-aluminum-vanadium alloy and zirconium-titanium-aluminum technology, which is applied in the field of alloy materials and their preparation, can solve the problems of difficult forging temperature control, increased manufacturing cycle and cost of zirconium-titanium-based alloys, etc., and achieves low cost and improved mechanical properties of the alloy. , the effect of refining the organization

Active Publication Date: 2018-05-29
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires supporting large-scale heating furnace and forging equipment, and it is difficult to control the forging temperature
Before each forging, it is necessary to turn or grind the surface of the forging billet formed last time to remove the oxide layer on the surface. These additional processes will lead to an increase in the manufacturing cycle and cost of zirconium-titanium-based alloys

Method used

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  • MAX phase reinforced zirconium titanium aluminum vanadium alloy and preparation method thereof
  • MAX phase reinforced zirconium titanium aluminum vanadium alloy and preparation method thereof
  • MAX phase reinforced zirconium titanium aluminum vanadium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1 (comparative example)

[0021] Cut 63.5g of forged 20Zr (Ti-20Zr-6Al-4V), put it in absolute ethanol, clean it with ultrasonic vibration, dry it with a hair dryer, and place it in a non-consumable vacuum arc melting furnace for repeated melting 8 times, the vacuum degree is 2.0×10 -2 Pa, the smelting current is kept at 300A, and the smelting time of each sample is 2min. After each smelting is completed, wait for the high-temperature red color of the ingot to recede before the next smelting. An alloy ingot with uniform composition is obtained.

[0022] A compression rod with a height of 10 mm and a diameter of 5 mm was cut from the ingot on a wire cutting machine, and the scale was removed from the surface with sandpaper, and its compression mechanical properties were tested on an instron5982 mechanical property testing machine. The specific experimental data are shown in Table 1.

[0023] Then put the zirconium-titanium-aluminum-vanadium alloy ingot into ...

Embodiment 2

[0025] Cut 63.9g of forged 20Zr (Ti-20Zr-6Al-4V) and SPS (plasma discharge sintering) to obtain pure Ti 3 AlC 2 Phase 0.33g, crushed, respectively placed in absolute ethanol, cleaned with ultrasonic vibration, dried with a hair dryer, placed in a non-consumable vacuum arc melting furnace for repeated melting 8 times, the vacuum degree was 2.0×10 -2 Pa, the smelting current is kept at 300A, and the sample smelting time is 2 minutes. After each smelting is completed, wait for the high-temperature red heat color of the ingot to fade before the next smelting. An alloy ingot with uniform composition is obtained.

[0026] A compression rod with a height of 10 mm and a diameter of 5 mm was cut from the ingot on a wire cutting machine, and the scale was removed from the surface with sandpaper, and its compression mechanical properties were tested on an instron5982 mechanical property testing machine. The specific experimental data are shown in Table 1.

[0027] Then put the zirconiu...

Embodiment 3

[0029] Cut 63.2g of forged 20Zr (Ti-20Zr-6Al-4V) and SPS (plasma discharge sintering) to obtain pure Ti 3 AlC 2 Phase 0.64g, crushed, respectively placed in absolute ethanol, cleaned with ultrasonic vibration, dried with a hair dryer, placed in a non-consumable vacuum arc melting furnace for repeated melting 8 times, the vacuum degree was 2.0×10 -2 Pa, the smelting current is kept at 300A, and the sample smelting time is 2 minutes. After each smelting is completed, wait for the high-temperature red heat color of the ingot to fade before the next smelting. An alloy ingot with uniform composition is obtained.

[0030] A compression rod with a height of 10 mm and a diameter of 5 mm was cut from the ingot on a wire cutting machine, and the scale was removed from the surface with sandpaper, and its compression mechanical properties were tested on an instron5982 mechanical property testing machine. The specific experimental data are shown in Table 1.

[0031] Then put the zirconiu...

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Abstract

The invention provides an MAX phase reinforced zirconium titanium aluminum vanadium alloy. The MAX phase reinforced zirconium titanium aluminum vanadium alloy is prepared from the following raw materials in percentage by mass: 20 percent to 51 percent of zirconium, 6 percent of aluminum, 4 percent of vanadium, 0.5 to 2.0 percent of a MAX phase (Ti3AlC2) and the balance of titanium and unavoidableimpurities. The MAX phase enhanced zirconium titanium aluminum vanadium alloy provided by the invention mainly takes a ZrTiAlV series alloy as a matrix and pure Ti2AlC2 obtained through an SPS (SparkPlasma Sintering) method is added into the matrix; then the matrix is treated through a non-consumable electric arc smelting furnace to obtain a reinforced zirconium titanium based alloy. According tothe MAX phase reinforced zirconium titanium aluminum vanadium alloy, the MAX phase (Ti3AlC2), which is not easily generated by directly adding carbon and smelting, is uniformly distributed into the matrix zirconium titanium based alloy; the MAX phase is added into the zirconium titanium based alloy by utilizing tissue structure characteristics of the MAX phase (Ti3AlC2), so that the aim of refining tissues and improving the mechanical properties of the alloy is realized; the product with relatively low cost can be obtained by utilizing a relatively low manufacturing period, without the need of a large-size heating furnace and forging equipment.

Description

technical field [0001] The invention relates to an alloy material and a preparation method thereof. Background technique [0002] Zirconium and titanium belong to the same main group in the mid-term table of elements. Zirconium alloys and titanium alloys have many similar characteristics, such as high strength, good corrosion resistance, good heat resistance, and good biocompatibility. Metal zirconium has the characteristics of small neutron absorption area, high corrosion resistance and high melting point (1860°C), which makes it widely used in the nuclear industry. Titanium alloy has the characteristics of high specific strength and excellent high temperature performance, and has been widely used in mechanical automation and aviation industry. With the continuous enrichment and development of zirconium-titanium alloys, zirconium-titanium alloys have gradually attracted attention as engineering structural materials, and their applications in many aspects, especially in the...

Claims

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Application Information

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IPC IPC(8): C22C1/10C22C1/02C22C30/00C22C16/00C22C14/00
CPCC22C1/1036C22C14/00C22C16/00C22C30/00
Inventor 张新宇吴政操秦家千马明臻刘日平
Owner YANSHAN UNIV
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