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Preparation method of composite molybdenum alloy plate material

An alloy plate and molybdenum composite technology, applied in the field of alloy material manufacturing, can solve the problems of difficult plastic forming, insufficient low temperature toughness, high price, etc., and achieve the effects of high bonding strength of film base, excellent mechanical properties, and uniform and dense surface.

Inactive Publication Date: 2018-07-06
瞿凌飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the low-temperature toughness of the TZM plate is insufficient, and plastic forming is difficult; although the Mo-Re plate has excellent performance, because Re is a scarce metal, the price is expensive, and the processing cost is difficult to control; Brittleness, strength and plasticity will be reduced at the same time, which will affect its service life and increase production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The molybdenum alloy substrate of the molybdenum alloy sheet material of the present embodiment is made up of following weight components: 0.5% Mo 5 Si 3 / Y 2 o 3 ; The remainder is pure molybdenum powder substrate phase with an average particle size of <8 μm.

[0025] Will Mo 5 Si 3 / Y 2 o 3 , ball milled to an average particle size of 100-300nm.

[0026] According to the designed molybdenum doping material composition ratio, the pure molybdenum powder with an average particle size of 5 Si 3 / Y 2 o 3 Mixing, using traditional powder metallurgy methods to mix and press into sintered slabs.

[0027] The obtained sintered slab is heated to 1850° C. in a pure hydrogen atmosphere and kept for 5 hours for sintering; after cooling in the furnace, a sintered billet is obtained.

[0028] The obtained sintered billet is heated from room temperature to 1350° C. for hot rolling, and the deformation amount of each pass is 20%, and when the total deformation amount is gre...

Embodiment 2

[0034] The molybdenum alloy substrate of the molybdenum alloy sheet material of the present embodiment is made up of following weight components: 2% Mo 5 Si 3 / Y 2 o 3 ; The remainder is pure molybdenum powder substrate phase with an average particle size of <8 μm.

[0035] Will Mo 5 Si 3 / Y 2 o 3 , ball milled to an average particle size of 100-300nm.

[0036] According to the designed molybdenum doping material composition ratio, the pure molybdenum powder with an average particle size of 5 Si 3 / Y 2 o 3 Mixing, using traditional powder metallurgy methods to mix and press into sintered slabs.

[0037] The obtained sintered slab is heated to 2050° C. in a pure hydrogen atmosphere, and kept for 10 hours for sintering; after cooling with the furnace, a sintered billet is obtained.

[0038] The obtained sintered billet is heated from room temperature to 1500° C. for hot rolling, and the deformation of each pass is 35%, and when the total deformation is greater than 80...

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Abstract

The invention discloses a preparation method of a composite molybdenum alloy plate material. The method can achieve the purpose that the texture structure of the material can be outstandingly improvedand controlled. A multi-layer thin film structure can hinder migration of oxygen vacancies. According to the preparation method, a rare earth memory alloy layer is formed on the surface of the molybdenum alloy plate material by adopting a magnetron sputtering method and a low temperature rolling means, the yield strength of the alloy can be enhanced, so that the molybdenum alloy plate material isuniform and compact in surface, high in film-base bonding strength and excellent in mechanical performance.

Description

Technical field [0001] The invention relates to the field of alloy material manufacturing, in particular to a method for preparing a composite molybdenum alloy plate. Background technique [0002] Molybdenum and its alloys have the advantages of high melting point, high strength, good electrical and thermal conductivity, strong corrosion resistance and good high-temperature mechanical properties. At present, the series used in the high temperature field mainly include TZM plates, Mo-La doped plates, Mo-Re plates and ASK doped plates. Among them, the plates used for high-temperature sintered boats are mainly TZM plates and Mo-La doped plates. Although they all have good high-temperature performance, there are still deficiencies at present. For example, the low-temperature toughness of the TZM plate is insufficient, and plastic forming is difficult; although the Mo-Re plate has excellent performance, because Re is a scarce metal, the price is expensive, and the processing co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/16C23C14/58C22C1/05C22C1/10C22C27/04C22C14/00
CPCC23C14/35C22C1/045C22C1/05C22C14/00C22C27/04C23C14/165C23C14/3414C23C14/5806C23C14/5886
Inventor 瞿凌飞
Owner 瞿凌飞
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