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A kind of cu-ag-fe-c alloy and preparation method thereof

A cu-ag-fe-c and alloy technology, applied in the field of Cu-Ag-Fe-C alloy and its preparation, can solve the problems of slow diffusion speed and achieve the effect of improving electrical conductivity and tensile strength

Active Publication Date: 2019-08-30
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the diffusion rate of Fe is very slow at low temperature, although other methods can reduce the solid solution amount of Fe in Cu, they cannot reduce the solid solution Fe in Cu to a very low state.

Method used

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  • A kind of cu-ag-fe-c alloy and preparation method thereof
  • A kind of cu-ag-fe-c alloy and preparation method thereof
  • A kind of cu-ag-fe-c alloy and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The alloy prepared in this embodiment is Cu-2.0wt%Ag-15wt% (Fe-C) alloy, that is: in this alloy, the content of Fe-C is 15wt%, the content of Cu is 83wt%, and the content of Ag is 2wt%, wherein, the mass percentage of C in the Fe-C alloy powder is 1wt%. The specific preparation method is as follows:

[0031] Melt 99.9wt% electrolytic high-purity Cu and elemental Ag in a vacuum intermediate frequency induction furnace. The melting temperature is controlled at 1100±5°C and the vacuum degree is 10Pa. -120nm Fe-C alloy powder is added to the copper-silver alloy liquid, and mechanically stirred at a stirring speed of 300rpm under the condition of 1100±5°C for 3 minutes, so that the solid Fe-C powder alloy is evenly distributed in the copper-silver alloy liquid, and then It is poured into a water-cooled copper mold for rapid cooling at a cooling rate of 100°C / s, and the obtained Cu-2.0wt%Ag-15wt% (Fe-C) alloy is obtained after pouring.

[0032] The performance test of the a...

Embodiment 2-4

[0034] Examples 2-4 are the same as Example 1 except that the mass percentage of C in the Fe-C alloy powder is different from Example 1. See Table 1 for the mass percentage of C in the Fe—C alloy powders of Examples 2-4 and the properties of the obtained alloys.

[0035] Process parameter and performance result of table 1 embodiment 2-4

[0036]

Embodiment 5-6 and comparative example 1

[0038] Embodiment 5-6 and comparative example 1 are different from embodiment 1 except that melting temperature and temperature during stirring (melting temperature is equal to temperature during stirring) are different from embodiment 1, and other process parameters are the same as embodiment 1. See Table 2 for the melting temperatures of Examples 5-6 and Comparative Example 1 and the properties of the obtained alloys.

[0039] Table 2 embodiment 5-6 and the process parameter and performance result of comparative example 1

[0040]

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Abstract

The invention discloses Cu-Ag-Fe-C series alloy and a preparation method thereof. The Cu-Ag-Fe-C series alloy is prepared from the following ingredients in percentage by mass: 0.5 to 3 percent of Ag,10 to 15 percent of Fe-C prealloy and the balance of Cu. The preparation method comprises a Cu and Ag smelting step, a Fe-C prealloy adding step and a fast solidification step so as to obtain the Cu-Ag-Fe-C series alloy with Fe-C prealloy particles uniformly distributed in a Cu-Ag base body. By the method, the electric conductivity and the tensile strength of the Cu-Fe series alloy can be improved; the tensile strength of the obtained cast alloy is 420 to 500MPa; the electric conductivity is 40 to 55 percent IACS.

Description

technical field [0001] The invention relates to a method for preparing a copper alloy, more specifically, the invention relates to a Cu-Ag-Fe-C alloy and a method for preparing the same. Background technique [0002] Copper alloy has good electrical and thermal conductivity, ductility and mechanical properties, and is a key functional material for the development of important industries such as electronic information, electric power, energy, ships and machinery. Compared with high-strength and high-conductivity copper alloys of other systems, the melting point of the alloying element Fe in the Cu-Fe system is relatively low, and it is easier to melt, and the immiscible gap between Fe and Cu is small, and the alloy has better deformability and machinability. It is better, so the research on Cu-Fe alloys has been paid attention to, and it has become one of the important directions for the development of high-strength and high-conductivity copper alloys. [0003] At present, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/00C22C1/03
Inventor 许磊王有超邓小玲孙丽虹历长云陈鹏飞米国发
Owner HENAN POLYTECHNIC UNIV
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