Development of Copper Based Alloys Possessing High Strength and High Electrical Conductivity by Molten Metal Preferential Oxidation Method

熔融金属优先氧化法开发高强度高导电铜基合金

基本信息

  • 批准号:
    61550528
  • 负责人:
  • 金额:
    $ 1.15万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1986
  • 资助国家:
    日本
  • 起止时间:
    1986 至 1987
  • 项目状态:
    已结题

项目摘要

Development of Copper Based Alloys Possessing High Strength and High Electrical Conductivity by Molten Metal Preferential Oxideation MethodThe molten metal preferential oxidation is a new process designed to produce a dispersion hardened copper alloy possessing high strength and high electrical conductivity at elevated temperatures. In this method, alloying elements having high oxide formation free energy are preferentially oxidized by the blowing of CO_2 gas in molten metals. High strength as well as high conductivity can be achieved by dispersing the oxides finely which grow by consuming the solute elements.The effects of the aluminium content, composition, pressure and volume of blown gas, the shape of the blowing nozzle and the heating process on the microstructure and property of this alloy were investigated. The increase in hardness and electrical conductivity by the gas blowing was found in all the testing conditions. Excellent results concerning these two properties were obtained when the gas volume is a few times as much as those required theoretically to oxidize all the solute atoms. It was suggested that the usage of the mixture of CO and CO_2 gases is better to achieve the high reproducibility and to oxidize the solute elements without the oxidation of copper solvent.
熔融金属优先氧化法研制高强高导铜合金熔融金属优先氧化法是一种制备高温高强度高导弥散硬化铜合金的新工艺。在该方法中,具有高氧化物形成自由能的合金元素通过在熔融金属中吹入CO_2气体而被优先氧化。研究了铝含量、成分、吹气压力、吹气量、喷嘴形状及加热工艺对该合金组织和性能的影响。在所有的测试条件下,发现通过吹气的硬度和电导率的增加。当气体体积是理论上氧化所有溶质原子所需气体体积的几倍时,获得了关于这两个性质的优异结果。结果表明,采用CO和CO_2混合气体进行测定,重现性好,且不需铜溶剂的氧化,可使溶质元素氧化。

项目成果

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KAMIJO Taichi其他文献

KAMIJO Taichi的其他文献

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{{ truncateString('KAMIJO Taichi', 18)}}的其他基金

Al-Mg Alloy Sheet of Excellent Formability for Automobile
具有优异成形性能的汽车用铝镁合金板
  • 批准号:
    05452293
  • 财政年份:
    1993
  • 资助金额:
    $ 1.15万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
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