Abrasion-resistant and corrosion-resistant molybdenum alloy and preparation method thereof

A molybdenum alloy and corrosion-resistant technology, which is applied in the field of molybdenum alloy preparation, can solve the problems of poor plasticity and toughness of molybdenum alloys, achieve the effects of low equipment requirements, improve processing performance, and enhance high temperature creep resistance

Active Publication Date: 2017-10-13
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wear-resistant and corrosion-resistant molybdenum alloy, thereby solving the problem of poor plasticity and toughness of the existing molybdenum alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The wear-resistant and corrosion-resistant molybdenum alloy of the present embodiment is applied to molybdenum electrodes for molten glass, and consists of the following components in volume percentage: ZrO 2 5%, Y 2 o 3 0.5%, the balance is molybdenum and unavoidable impurities.

[0027] The preparation method of the wear-resistant and corrosion-resistant molybdenum alloy of the present embodiment comprises the following steps:

[0028] 1) Weigh 4000g of ammonium tetramolybdate and put it into a resistance furnace, calcinate at 520°C for 4 hours, and pass through a 40-mesh sieve to obtain MoO 3 Powder;

[0029] Weigh 216.3g of zirconium nitrate and 19.56g of yttrium nitrate into a beaker, add 500ml of absolute ethanol and 1000ml of distilled water, place the beaker in a water bath at 80°C, and keep stirring until completely dissolved to obtain a mixed solution;

[0030] 2) MoO 3 Put the powder into a ball mill tank, dry mill for 8 hours, then pour the mixed solu...

Embodiment 2

[0035] The wear-resistant and corrosion-resistant molybdenum alloy of this embodiment is applied to molybdenum wire for wire cutting, and consists of the following components in volume percentage: ZrO 2 0.2%, Y 2 o 3 0.05%, the balance is molybdenum and unavoidable impurities.

[0036] The preparation method of the wear-resistant and corrosion-resistant molybdenum alloy of the present embodiment comprises the following steps:

[0037] 1) Weigh 4096g of ammonium dimolybdate and put it into a resistance furnace, calcinate at 510°C for 3h, and pass through a 40-mesh sieve to obtain MoO 3 Powder;

[0038] Weigh 8.48g of zirconium nitrate and 1.93g of yttrium nitrate into a beaker, add 500ml of absolute ethanol and 1000ml of distilled water, place the beaker in a water bath at 80°C, and keep stirring until completely dissolved to obtain a mixed solution;

[0039] 2) MoO 3 Put the powder into a ball mill tank, dry-mill for 9 hours, then pour the mixed solution obtained in ste...

Embodiment 3

[0044] The wear-resistant and corrosion-resistant molybdenum alloy of the present embodiment is applied to the molybdenum plug for steel pipe production, and consists of the following components in volume percentage: ZrO 2 10%, Y 2 o 3 1%, the balance is molybdenum and unavoidable impurities.

[0045] The preparation method of the wear-resistant and corrosion-resistant molybdenum alloy of the present embodiment comprises the following steps:

[0046] 1) Weigh 4253.92g of ammonium heptamolybdate and put it into a resistance furnace, calcinate at 500°C for 5h, and pass through a 40-mesh sieve to obtain MoO 3 Powder;

[0047] Weigh 470.32g of zirconium nitrate and 38.92g of yttrium nitrate into a beaker, add 500ml of absolute ethanol and 1000ml of distilled water, place the beaker in a water bath at 80°C, and keep stirring until completely dissolved to obtain a mixed solution;

[0048] 2) MoO 3 Put the powder into a ball mill tank, dry mill for 10 hours, then pour the mixe...

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Abstract

The invention relates to an abrasion-resistant and corrosion-resistant molybdenum alloy and a preparation method thereof. The abrasion-resistant and corrosion-resistant molybdenum alloy comprises the following components by volume percent: 0.2% to 10% of ZrO2 and 0.05% to 1% of Y2O3, and the balance being molybdenum. According to the abrasion-resistant and corrosion-resistant molybdenum alloy provided by the invention, ZrO2 is adopted as dispersed phases and is added into the molybdenum alloy, Y2O3 is added to stabilize tetragonal phases ZrO2 in the molybdenum alloy, crystal transition of ZrO2 under the high temperature is prevented, and plasticity and toughness are guaranteed; and the components in the alloy are reasonable in proportion and cooperate to act, recrystallization temperature of the molybdenum alloy is increased, grain-boundary strength of the molybdenum alloy is improved while processing performance is improved, and high-temperature creep resistance, abrasion resistance and corrosion resistance of the molybdenum alloy are strengthened.

Description

technical field [0001] The invention belongs to the field of preparation of molybdenum alloys, in particular to a wear-resistant and corrosion-resistant molybdenum alloy and a preparation method thereof. Background technique [0002] Molybdenum and its alloys have the characteristics of high melting point, high hardness, low expansion coefficient, high electrical conductivity and outstanding high-temperature mechanical properties, and are widely used in high-tech fields such as photoelectric energy, finishing, aerospace and aviation, such as electric vacuum parts (grid pole, anode), electric light source (support material), high temperature resistant structural material, electrode for melting glass, drilling cutter head, molybdenum wire for wire cutting, metal processing tools, corrosion-resistant additives for steel alloys, etc. In addition, with the development of my country's industry, the performance requirements of molybdenum products are getting higher and higher, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/04C22C1/04C22C1/10
CPCC22C1/045C22C1/10C22C27/04C22C1/1089
Inventor 周玉成魏世忠徐流杰姚丽莹肖利强刘伟李秀青徐锐
Owner HENAN UNIV OF SCI & TECH
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