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Preparation method of molybdenum alloy plate with hard nitrogen-yttrium-zirconium coating

A hard coating and molybdenum alloy technology, which is applied in the field of alloy material manufacturing, can solve the problems of difficult control of processing costs, high price, and insufficient low-temperature toughness.

Inactive Publication Date: 2016-08-24
SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
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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

[0021] 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 the matrix phase of pure molybdenum powder with an average particle size of <8 μm.

[0022] Will Mo 5 Si 3 / Y 2 o 3 , ball milled to an average particle size of 100-300nm.

[0023] 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.

[0024] 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.

[0025] 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...

Embodiment 2

[0030] 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 the matrix phase of pure molybdenum powder with an average particle size of <8 μm.

[0031] Will Mo 5 Si 3 / Y 2 o 3 , ball milled to an average particle size of 100-300nm.

[0032] 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.

[0033] 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.

[0034] 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 tha...

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Abstract

The invention discloses a preparation method of a molybdenum alloy plate with a hard nitrogen-yttrium-zirconium coating. When the preparation method is used for preparing the molybdenum alloy plate, the high-hardness nitrogen-yttrium-zirconium coating is prepared on the surface of a base plate according to a direct-current and radio-frequency reactive co-sputtering method by Y-target power control under the conditions of specific deposition pressure intensity, temperature, nitrogen partial pressure and the like, so that material structures can be remarkably improved and controlled, strength and toughness of a prepared molybdenum material can be matched perfectly, and excellent overall performance is achieved.

Description

technical field [0001] The invention relates to the field of alloy material manufacturing, in particular to a method for preparing a molybdenum alloy plate with a yttrium-zirconium nitride hard coating. Background technique [0002] Cemented carbide has the characteristics of high strength, high hardness, excellent wear resistance, heat resistance and good corrosion resistance, so it is widely used in high pressure, high speed, high temperature, corrosive media and other working environments [0003] Molybdenum and its alloys are widely used in high-temperature fields such as high-temperature heating, glass melting, and high-temperature structural supports due to their 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...

Claims

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Application Information

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IPC IPC(8): C23C14/34C23C14/06C23C14/02B22F3/16
CPCC23C14/0036B22F3/16C23C14/02C23C14/021C23C14/022C23C14/0641C23C14/34
Inventor 不公告发明人
Owner SUZHOU SICHUANGYUANBO ELECTRONICS TECH CO LTD
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