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。
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.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2014年第2期140-142,共3页
Special Casting & Nonferrous Alloys
基金
江西省教育厅科学技术研究资助项目(GJJ12660)
萍乡市指导性科技计划项目
