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首页> 外文期刊>Metallurgical and Materials Transactions A >Microstructure and Mechanical Properties of Cu-Based Amorphous Alloy/Copper Composites Consolidated by Spark Plasma Sintering
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Microstructure and Mechanical Properties of Cu-Based Amorphous Alloy/Copper Composites Consolidated by Spark Plasma Sintering

机译：放电等离子烧结固结的铜基非晶合金/铜复合材料的组织和力学性能

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Microstructure and mechanical properties of Cu-based amorphous alloy/copper composites consolidated by spark plasma sintering (SPS) equipment were investigated in this study. Amorphous alloy powders were mixed with 10 to 40 vol pct of pure Cu powders and were consolidated at 460 °C for 0.5 minute under 300 or 700 MPa. The consolidated composites contained Cu particles homogeneously distributed in the amorphous matrix, and showed a considerable plastic strain, whereas their compressive strength was lower than that of the monolithic amorphous alloys. The compressive strength and plastic strain of the composites consolidated under 700 MPa showed 10 to 20 pct and 2 times increases, respectively, over those of the composites consolidated under 300 MPa. The increase in consolidation pressure could play a role in sufficient bonding between prior amorphous powders, in preventing micropores, and in suppressing the crystallization, thereby leading to the successful consolidation of the high-quality composites. These findings suggested that the composites consolidated by the SPS presented new possibilities of application to structural materials or parts requiring excellent mechanical properties and large sizes.
机译：研究了用火花等离子体烧结（SPS）设备固结的铜基非晶合金/铜复合材料的组织和力学性能。将非晶态合金粉末与10至40体积％的纯铜粉末混合，并在460°C下于300或700 MPa固结0.5分钟。固结的复合材料包含均匀分布在非晶态基体中的Cu颗粒，并表现出相当大的塑性应变，而其抗压强度低于整体非晶态合金。在300 MPa下固结的复合材料的抗压强度和塑性应变分别比在300 MPa下固结的复合材料的抗压强度和塑性应变分别高10到20 pct和2倍。固结压力的增加可以在现有的无定形粉末之间充分粘合，防止微孔并抑制结晶中发挥作用，从而导致高质量复合材料的成功固结。这些发现表明，由SPS固结的复合材料为应用于要求优异机械性能和大尺寸的结构材料或零件提供了新的可能性。

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    《Metallurgical and Materials Transactions A》 |2007年第11期|2754-2762|共9页
  • 作者

    Chang Kyu Kim; Sunghak Lee; Seung Yong Shin; Do Hyang Kim;

  • 作者单位

    Center for Advanced Aerospace Materials Pohang University of Science and Technology Pohang 790-784 Korea;

    Center for Advanced Aerospace Materials Pohang University of Science and Technology Pohang 790-784 Korea;

    Production Technology Center Korea Institute of Industrial Technology Incheon 406-840 Korea;

    Center for Non-crystalline Materials Yonsei University Seoul 120-749 Korea;

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