Microstructure and Properties of Liquid Phase In-situ Synthesized Cr<sub>3</sub>C<sub>2</sub>/Cu Composites by Spray-casting

Xu Biao; Wan Bin; Xin Feng; Liu Yao; Zhan Lila

doi:10.15980/j.tzzz.2014.02.009

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Microstructure and Properties of Liquid Phase In-situ Synthesized Cr₃C₂/Cu Composites by Spray-casting
Vol. 34, Issue 2, Pages: 140-142(2014)
Published： 2014 ，
DOI： 10.15980/j.tzzz.2014.02.009

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[1]许彪,王斌,辛锋,刘耀,占丽娜.喷铸制备液相原位生成Cr_3C_2/Cu复合材料的组织与性能[J].特种铸造及有色合金,2014,34(02):140-142.

Xu Biao, Wan Bin, Xin Feng, et al. Microstructure and Properties of Liquid Phase In-situ Synthesized Cr₃C₂/Cu Composites by Spray-casting. [J]. Special Casting & Nonferrous Alloys 34(2):140-142(2014)
[1]许彪,王斌,辛锋,刘耀,占丽娜.喷铸制备液相原位生成Cr_3C_2/Cu复合材料的组织与性能[J].特种铸造及有色合金,2014,34(02):140-142. DOI： 10.15980/j.tzzz.2014.02.009.

Xu Biao, Wan Bin, Xin Feng, et al. Microstructure and Properties of Liquid Phase In-situ Synthesized Cr₃C₂/Cu Composites by Spray-casting. [J]. Special Casting & Nonferrous Alloys 34(2):140-142(2014) DOI： 10.15980/j.tzzz.2014.02.009.

摘要

采用真空高频感应炉喷铸技术

以Cu-0.5Cr-0.2Zr-0.02Y为原材料

通过在石墨坩埚中熔炼液相Cr与石墨C反应原位生成液相Cr3C2金属碳化物

制备了颗粒增强Cr3C2/Cu复合材料。研究了该材料的显微组织、力学性能和电学性能。结果表明

经压延变形和人工时效处理后该材料的显微组织特征为以稳定的等轴晶α-Cu相为基;经90%压延变形+763K时效45min处理后

该材料的硬度（HV）为182.7

电导率为48.4MS/m。

Abstract

Based on vacuum high frequency induction furnace spray casting technology

Cr3C2particle reinforced Cu-0.5Cr-0.2Zr-0.02Ycomposites were prepared through liquid phase Cr reaction with graphite C in graphite crucible.The microstructure

mechanical and electrical properties of the composites prepared were analyzed.The results show that through rolling and aging treatment

microstructure of the composites is characterized by equiaxedα-Cu phase matrix

while after 90%cold deformation and aging treatment for 45minutes

micro-hardness and electric conductivity of the composites reach HV182.7 and 48.4MS/m.