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Method for manufacturing micronanostructure on surface of block amorphous alloy

A technology of amorphous alloy and micro-nano structure, which is applied in the field of rapid fabrication of micro-nano structure on the surface of bulk amorphous alloy, which can solve the problem that the separation of mold and replica product hinders the application, it is difficult to make large-sized amorphous parts, and it is difficult to make large area. Production and other problems, to achieve the effect of reducing processing cost, low processing cost and high processing efficiency

Inactive Publication Date: 2011-06-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is difficult to produce in a large area, and the separation between the mold and the replica product hinders its application
[0004] In fact, for bulk amorphous alloys, the main problems in its application include: high cost, high room temperature brittleness, difficulty in making large-sized amorphous parts, etc. Micro-nano forming on the surface of bulk amorphous alloys not only It can improve the value of bulk amorphous alloy products, and if thin strips are used, large-size (two-dimensional) amorphous parts can be produced; the current method of making micro-nano structures on the surface of amorphous alloys is mainly the surface replication method, how to reduce High processing costs, improving processing efficiency, and realizing large-area production are the key problems to be solved at present

Method used

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  • Method for manufacturing micronanostructure on surface of block amorphous alloy
  • Method for manufacturing micronanostructure on surface of block amorphous alloy
  • Method for manufacturing micronanostructure on surface of block amorphous alloy

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The material to be surface processed is Mg 65 Cu 25 Y 10 Bulk amorphous alloy: remove the oxides on the surface of the bulk amorphous alloy by mechanical grinding, then use acetone to ultrasonically clean the grease on the surface of the bulk amorphous alloy, put the bulk amorphous alloy in a vacuum cover after drying, and pump Vacuum to vacuum degree is 1×10 -2 Pa, and then filled with argon to 500Pa, using a titanium alloy hollow roll mold with a diameter of 20mm heated to 220°C. The mold rolls Mg at a speed of 5mm / s 65 Cu 25 Y 10 The surface of the bulk amorphous alloy, the highest temperature after the surface of the bulk amorphous alloy is in contact with the roll mold is 180 ° C, so that the Mg 65 Cu 25 Y 10 The porous micro-nano structure is continuously obtained on the surface of the bulk amorphous alloy.

[0025] Roll mold surface and Mg after rolling 65 Cu 25 Y 10 The scanning electron micrographs of the surface of the bulk amorphous alloy are as f...

Embodiment 2

[0027] Material selection for surface processing Fe 78 Si 9 B 13 Bulk amorphous alloy: use pickling method to remove oxides on the surface of bulk amorphous alloy, then use acetone to ultrasonically clean the grease on the surface of bulk amorphous alloy, put the bulk amorphous alloy in a vacuum cover after drying, and vacuum Vacuum to vacuum degree is 1×10 -2 Pa, using a nickel-chromium alloy hollow roll mold with a diameter of 25mm heated to 380°C. The surface of the mold has been pre-processed by a laser tool to obtain a nano-columnar structure. The roll mold is rolled at a speed of 25mm / s under a pressure of 2000 Pa. Fe 78 Si 9 B 13 The surface of the bulk amorphous alloy has a maximum temperature of 330° C. after contacting the surface with a roll-shaped mold, thus obtaining a surface with a micro-nano structure.

Embodiment 3

[0029] The material to be surface processed is Zr 55 al 10 Ni 5 Cu 30 Bulk amorphous alloy: use pickling to remove oxides on the surface of the bulk amorphous alloy, then use acetone to ultrasonically clean the grease on the surface of the bulk amorphous alloy, and dry it for future use. Then put the bulk amorphous alloy into a vacuum cover and evacuate to a vacuum degree of 1×10 -2 Pa, using a nickel-chromium alloy hollow roll mold with a diameter of 30mm heated to 480°C. The surface of the mold has been pre-processed by a laser tool to obtain a nano-columnar structure, and the Zr is rolled at a speed of 50mm / s under a pressure of 3000 Pa. 55 al 10 Ni 5 Cu 30 The surface of the bulk amorphous alloy has a maximum temperature of 435° C. after contacting the surface with a roll-shaped mold, thus obtaining a surface with a micro-nano structure.

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Abstract

The invention relates to a method for manufacturing a micronanostructure on the surface of a material, in particular to the method for manufacturing the micronanostructure on the surface of a block amorphous alloy. The method is characterized by comprising the following steps of: completely cleaning oxide, oils and fats from the surface of the block amorphous alloy in a conventional way; making the surface of the block amorphous alloy, required to be processed, in a vacuum or inert gas protection state in a proper way; and rolling the surface required to be processed under the action of a given pressure with a roller-shaped die which is heated to an enough high temperature so as to obtain the block amorphous alloy surface with the micronanostructure. The surface manufactured by the methodis high in quality, low in processing cost, high in processing efficiency and flexible in technical operation.

Description

technical field [0001] The invention relates to a method for fabricating a micro-nano structure on the surface of a material, in particular to a method for rapidly fabricating a micro-nano structure on the surface of a bulk amorphous alloy. Background technique [0002] Bulk amorphous alloy (Bulk amorphous alloy; also known as bulk metallic glass, Bulk metallic glass) usually refers to the size of the amorphous alloy at the millimeter level and the critical cooling rate below 10 3 K / s amorphous alloy system; Compared with crystalline alloys, amorphous alloys have the structural characteristics of long-range disorder and short-range order, making them have the characteristics of general metals and glasses, and amorphous alloys do not have conventional crystalline states The vacancies, interstitial atoms, impurities, dislocations, grain boundaries and other defects in the interface form of the material, and these defects are the weak positions of the material, are easy to init...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P17/04
Inventor 陈刚赵玉涛黄康
Owner JIANGSU UNIV
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