Preparation method of amorphous-reinforced copper-based composite material

A copper-based composite material, amorphous technology, applied in the field of metal materials, to achieve broad industrial application prospects, improve comprehensive performance, and effectively combine the effects

Inactive Publication Date: 2011-09-21
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the application of amorphous alloys encounters a big bottleneck

Method used

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  • Preparation method of amorphous-reinforced copper-based composite material
  • Preparation method of amorphous-reinforced copper-based composite material
  • Preparation method of amorphous-reinforced copper-based composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: (extruded rod 1)

[0017] Cu 40 Zr 44 Ag 8 al 8 Preparation of bulk amorphous alloys:

[0018] Melting pure Cu, Zr, Ag and Al metals into Cu 40 Zr 44 Ag 8 al 8 The base alloy button blank; the surface is mechanically polished, and then the master alloy is pulverized. Under vacuum conditions, it is blow-cast into Cu with a diameter of 3mm by rapid induction melting. 40 Zr 44 Ag 8 al 8 Amorphous alloy bars.

[0019] Preparation of new amorphous reinforced copper matrix composites (extruded rods):

[0020] Using the prepared hollow copper alloy tube with an outer diameter of 7 mm and an inner diameter of 3 mm and the above Cu 40 Zr 44 Ag 8 al 8 The amorphous alloy bar is placed in the bar extrusion die according to the extrusion ratio of 5.4, and is extruded under the extrusion process conditions of the extrusion temperature of 703K and the extrusion rate of 0.1mm / s. Finally, the required Cu with a diameter of 3 mm is obtained 40 Zr 44 Ag ...

Embodiment 2

[0021] Embodiment 2: (extruded rod 2)

[0022] Cu 40 Zr 44 Ag 8 al 8 The preparation of bulk amorphous alloy is as described in Example 1.

[0023] Preparation of new amorphous reinforced copper matrix composites (extruded rods):

[0024] Use the prepared hollow copper alloy tube with an outer diameter of 7 mm and an inner diameter of 3 mm and the above Cu 40 Zr 44 Ag 8 al 8 The amorphous alloy bar is placed in the bar extrusion die according to the extrusion ratio of 5.4, and is extruded under the extrusion process conditions of the extrusion temperature of 726K and the extrusion rate of 0.3mm / s. Finally, the required Cu with a diameter of 3 mm is obtained 40 Zr 44 Ag 8 al 8 Base amorphous reinforced copper matrix composite rod.

Embodiment 3

[0025] Embodiment 3: (extrusion plate)

[0026] Cu 40 Zr 44 Ag 8 al 8 The preparation of bulk amorphous alloy is as described in Example 1.

[0027] Preparation of New Amorphous Reinforced Copper Matrix Composite (Extrusion Sheet):

[0028] Use the prepared hollow copper alloy tube with an outer diameter of 9mm and an inner diameter of 3mm and the above Cu 40 Zr 44 Ag 8 al 8 Amorphous alloy rods are placed in a plate extrusion die at an extrusion ratio of 8.1, and extruded at an extrusion temperature of 703K and an extrusion rate of 0.3mm / s to obtain a thickness of 2 ㎜, Cu with a width of 5㎜ 40 Zr 44 Ag 8 al 8 base amorphous reinforced copper matrix composite sheet.

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Abstract

The invention relates to a preparation method of an amorphous-reinforced copper-based composite material, comprising preparation of a Cu40Zr44Ag8Al8-based master alloy blank, characterized by comprising the steps of: pulverizing the master alloy blank, carrying out rapid induction melting and blow casting on the master alloy blank in vacuum to obtain a rod material with the diameter of 1-3mm, carrying out surface polishing treatment on the rod material, compounding the rod material as a core material with a copper alloy, wherein the volume part of amorphous alloy in the core part is 20-80%, and extruding a plate material or the rod material in a supercooled liquid phase region at an extrusion ratio of 3-10 and an extrusion rate of 0.1-0.3 mm/second. The preparation method provided by the invention realizes effective combination of strength and plasticity and improves the comprehensive properties of the composite material; by using thermoplastic shaping of large amorphous alloy, the composite material is not limited in shape, can be prepared into all kinds of sectional materials and has flexible production processes; and simultaneously, the preparation method can be applied to other similar alloy systems and has broad industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and relates to a method for preparing composite materials. Background technique [0002] Since the amorphous alloy has a structure of short-range order and long-range disorder, there are no defects such as grain boundaries, dislocations, and stacking faults that affect the properties of the alloy, and it has excellent mechanical properties, corrosion resistance, wear resistance, and excellent softness. Characteristics such as magnetism and superconductivity have become one of the hot research fields in the international materials community. However, except for a few recently developed amorphous alloys that exhibit macroscopic plasticity, most amorphous alloys exhibit high localization during service, resulting in the lack of obvious plastic deformation of amorphous alloys. During the formation of these highly localized shear bands, due to strain softening and thermal softening, the nucle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C45/10C22C1/00
Inventor 刘勇张丽郭洪民朱政强杨湘杰
Owner NANCHANG UNIV
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