CN109868388A - A kind of novel C u-Fe-C alloy and preparation method thereof - Google Patents
A kind of novel C u-Fe-C alloy and preparation method thereof Download PDFInfo
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Abstract
A kind of novel C u-Fe-C alloy and preparation method thereof, belongs to Cu-Fe system field of alloy preparation technology.It is characterized in the component of the novel C u-Fe-C alloy by mass percentage, the content of Cu is 85 ~ 90wt%, and the content of Fe-C is 10 ~ 15wt%, and the content of C is 2wt% in Fe-C.It is that 99.7% bronze medal is put into melting in electric furnace that preparation method, which is by purity,；Copper to be heated all dissolves, and Fe-2wt%C raw material master alloy is added into copper solution, continues to heat;To alloy in furnace, all fusing uniformly, keeps the temperature 2 ~ 3 minutes at 1550 DEG C ~ 1650 DEG C；Power supply is closed, it is in 8mm ~ 12mm brass die that the melt after melting, which is poured into internal diameter, and cast temperature is 1450 DEG C ~ 1600 DEG C；It is air-cooled.Advantage is to realize the solidification that homogenizes of metastable unmixing Cu-Fe alloy, improves the comprehensive performance of the alloy, and the tensile strength of obtained cast alloy is 430 ~ 520MPa, conductivity is 40 ~ 60%IACS, and hardness is 80 ~ 110HV, and preparation method is simple to operation, it is at low cost, easily promote.
Description
Technical field
The invention belongs to Cu-Fe system field of alloy preparation technology, and in particular to a kind of novel C u-Fe-C alloy and its preparation
Method.
Background technique
With high-tech development, numerous emerging technology areas, such as high-speed railway touching net, robot wiring conductor, electricity
Device engineering switchs bridge cut-off etc., is increasingly urgent to high property copper alloy product demand.In particular with the rapid development of rail traffic,
As the appearance of the new traffic tools such as magnetic suspension, the electric conductivity, wearability and material lifetime etc. of material are proposed higher
Requirement.Copper and copper-based material electric conductivity, alloy life and in terms of there is comparable competitiveness, therefore by improving material
Expect ingredient and technique, develops the direction that highly conductive copper-base material with high abrasive resistance has become copper alloy research and development.
Cu-Fe system alloy receives the extensive of many researchers because having the characteristics that excellent comprehensive performance and low cost
Concern.However, the alloy system causes Cu-Fe alloy since liquid phase separation will occur into metastable unmixing gap while cooling
Solidified structure shows mutually to separate on a macroscopic scale or solute segregation, and which greatly limits answering for this kind of alloy
With.
Patent application application No. is 201810260002.2 is a kind of Cu-Fe-C system alloy and preparation method thereof, this is specially
Benefit applies for that obtained its tensile strength of cast alloy is 410~470MPa, and conductivity is this limit within the scope of 30~50%IACS
The application range of the alloy is made.
Summary of the invention
The object of the present invention is to provide a kind of novel C u-Fe-C alloys and preparation method thereof, can effectively overcome the prior art
There are the shortcomings that.
The invention is realized in this way, it is characterised in that: a kind of novel C u-Fe-C alloy, component is by mass percentage
Be: the content of Cu is 85~90wt%, and the content of Fe-C is 10~15wt%, and the content of C is 2wt% in Fe-C, in Cu-Fe-C
FeC phase uniform particle Dispersed precipitate is in rich Cu matrix in the solidified structure of alloy.
The preparation method of the novel C u-Fe-C alloy is:
1. being that 99.9% bronze medal is put into melting in electric furnace by purity；
After 2. copper to be heated all dissolves, Fe-2wt%C raw material master alloy is added into copper solution, continues to heat,
To alloy in furnace, all fusing uniformly, keeps the temperature 2~3 minutes at 1550 DEG C~1650 DEG C；
3. closing power supply, it is cast temperature 1450 in 8mm~12mm brass die that the melt after melting, which is poured into internal diameter,
DEG C~1600 DEG C；
4. air-cooled.
Advantage of the present invention and good effect:
1. the present invention realizes the equal of metastable unmixing Cu-Fe alloy using micro C element is added in Cu-Fe alloy
Matterization solidification, improves the comprehensive performance of the alloy, and if tensile strength is 430~520MPa, conductivity is 40~60%IACS,
Hardness is 80~110HV.
2. preparation method of the invention is simple to operation, and at low cost, easily promote.
3. the present invention realizes the metastable unmixing Cu-Fe of control using the method to Cu-Fe alloy addition third element C
The Cu-Fe complex phase material that rich Fe phase is uniformly distributed in rich Cu matrix in the form of a particle has been prepared in the liquid-liquid decomposition behavior of alloy
Material.
Detailed description of the invention
Fig. 1 is the microstructure of Cu-10wt% (Fe-2wt%C) alloy and Cu-15wt% (Fe-2wt%C) alloy,
In: (a) to be added to 10wt% (Fe-2wt%C) alloy, matrix is richness Cu phase in figure, and equally distributed particle is FeC phase；
(b) to be added to 15wt% (Fe-2wt%C), matrix is richness Cu phase in figure, and equally distributed particle is FeC phase.
Specific embodiment
Embodiment 1:
The alloy of this example preparation is Cu-10wt% (Fe-2wt%C) alloy, i.e., the content of Fe-C is in alloy
The content of C is 2wt% in 10wt%, Fe-C, and the content of Cu is 90wt%.Its it is specific the preparation method is as follows:
1. the Cu that purity is 99.9% is put into melting in Efco-Northrup furnace；2. being added after Cu dissolves into Cu solution
Content is the Fe-2wt%C raw material master alloy of 10wt%, continues heating and all dissolves to alloy, keeps the temperature 2 minutes at 1550 DEG C；③
Power supply is closed, the brass die for being 10mm by melt injection internal diameter, cast temperature is 1450 DEG C；4. air-cooled.Fig. 1 (a) is shown
The microstructure of 10wt% (Fe-2wt%C) alloy is added in the embodiment.
Embodiment 2:
The alloy of this example preparation is Cu-15wt% (Fe-2wt%C) alloy, i.e., the content of Fe-C is in alloy
The content of C is 2wt% in 15wt%, Fe-C, and the content of Cu is 85wt%.Its it is specific the preparation method is as follows:
1. the Cu that purity is 99.9% is put into melting in Efco-Northrup furnace；2. being added after Cu dissolves into Cu solution
Content is the Fe-2wt%C raw material master alloy of 15wt%, continues heating and all dissolves to alloy, keeps the temperature 2 minutes at 1650 DEG C；③
Power supply is closed, the brass die for being 10mm by melt injection internal diameter, cast temperature is 1550 DEG C；4. air-cooled.Fig. 1 (b) is shown
The microstructure of 15wt% (Fe-2wt%C) alloy is added in the embodiment.
Table 1 show present patent application embodiment 1,2 and comparison application No. is 201810260002.2 patent Examples
11 results of property.
Table 1
。
Claims (2)
1. a kind of novel C u-Fe-C alloy, it is characterised in that: by mass percentage, the content of Cu is 85-90wt%, Fe-C's
Content is 10-15wt%, and the content of C is 2wt%, the FeC phase particle in the solidified structure of the novel C u-Fe-C alloy in Fe-C
Even dispersion is distributed in rich Cu matrix.
2. a kind of preparation method of novel C u-Fe-C alloy is:
1. being that 99.7% bronze medal is put into melting in electric furnace by purity；
2. copper to be heated all dissolves, Fe-2wt%C raw material master alloy is added into copper solution, continues to heat, to close in furnace
Golden all fusings uniformly, keep the temperature 2~3 minutes at 1550 DEG C~1650 DEG C；
3. closing power supply, it is in 8mm~12mm brass die that the melt after melting, which is poured into internal diameter, and cast temperature is 1450 DEG C
~1600 DEG C；
4. air-cooled.
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| CN201910297529.7A CN109868388B (en) | 2019-04-15 | 2019-04-15 | Cu-Fe-C alloy and preparation method thereof |
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| CN201910297529.7A CN109868388B (en) | 2019-04-15 | 2019-04-15 | Cu-Fe-C alloy and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1017957A (en) * | 1996-07-05 | 1998-01-20 | Mitsubishi Materials Corp | Manufacture of copper alloy ingot having fine cast structure |
| CN104263985A (en) * | 2014-09-24 | 2015-01-07 | 西安理工大学 | Preparation method of self-hard reinforced Cu-FeC composite material |
| CN108425031A (en) * | 2018-03-27 | 2018-08-21 | 河南理工大学 | A kind of Cu-Fe-C systems alloy and preparation method thereof |
| CN108456797A (en) * | 2018-03-27 | 2018-08-28 | 河南理工大学 | A kind of Cu-Ag-Fe-C systems alloy and preparation method thereof |
-
2019
- 2019-04-15 CN CN201910297529.7A patent/CN109868388B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1017957A (en) * | 1996-07-05 | 1998-01-20 | Mitsubishi Materials Corp | Manufacture of copper alloy ingot having fine cast structure |
| CN104263985A (en) * | 2014-09-24 | 2015-01-07 | 西安理工大学 | Preparation method of self-hard reinforced Cu-FeC composite material |
| CN108425031A (en) * | 2018-03-27 | 2018-08-21 | 河南理工大学 | A kind of Cu-Fe-C systems alloy and preparation method thereof |
| CN108456797A (en) * | 2018-03-27 | 2018-08-28 | 河南理工大学 | A kind of Cu-Ag-Fe-C systems alloy and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| M.X. GUO ET AL.: "Effects of precipitation and strain-induced martensitic transformation of Fe-C phases on the mechanical properties of Cu-Fe-C alloy", 《MATERIALS SCIENCE & ENGINEERING A》 * |
| 乔斌等: "注射成型Cu-Fe-C摩擦材料的性能", 《材料科学与工程学报》 * |
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