Zr、Ti元素掺杂对高比重W-Cu-Ni/Y_(2)O_(3)复合材料的显微组织和性能的影响规律研究  

Effect of Zr and Ti Doping on Microstructure and Properties of W-Cu-Ni/Y_(2)O_(3) Composites with High Specific Gravity

作　　者：刘东光 张力 罗来马[2,3,4] LIU Dongguang;ZHANG Li;LUO Laima(Industry&Equipment Technology,Hefei University of Technology,Hefei 230009,Anhui,China;School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,Anhui,China;National-Local Joint Engineering Research Centre of Nonferrous Metals and Processing Technology,Hefei 230009,Anhui,China;Copper Alloy and Forming Engineering Research Center of Ministry of Education,Hefei 230009,Anhui,China)

机构地区：[1]合肥工业大学工业与装备技术研究院,安徽合肥230009 [2]合肥工业大学材料科学与工程学院,安徽合肥230009 [3]有色金属与加工技术国家地方联合工程研究中心,安徽合肥230009 [4]教育部铜合金及成形加工工程研究中心,安徽合肥230009

出　　处：《中国钨业》2021年第1期28-34,54,共8页China Tungsten Industry

基　　金：国家重点研发计划磁约束聚变能专项(2019YFE03120004)。

摘　　要：通过高能球磨法制备了多元掺杂高比重W-Cu-Ni/Y_(2)O_(3)粉末,经放电等离子烧结制得高比重W-Cu-Ni/Y_(2)O_(3)复合材料,研究分析了材料显微组织、晶体结构和力学性能。结果表明:掺杂质量分数1.5%Zr、1.5%Ti元素所制备的粉体具有良好的烧结性能,经SPS烧结后相对密度超过99.5%。同时,所制得的复合材料具有更好的力学性能,硬度达657.8HV,400℃时抗拉强度302.78 MPa。W-Cu-Ni/Y_(2)O_(3) powder with high specific gravity was prepared by high-energy ball milling.Then,W-Cu-Ni/Y_(2)O_(3)composites with high specific gravity were prepared by spark plasma sintering.The microstructure,crystal structure and mechanical properties of the materials were analyzed.The results show that the powders doped with 1.5%Zr and 1.5%Ti have good sintering properties,and the density after SPS sintering exceeds 99.5%.At the same time,the composite material has better mechanical properties,with hardness of 657.8HV and tensile strength of 302.78 MPa at 400℃.

关 键 词：高比重钨合金 多元掺杂 显微组织 抗拉强度 

分 类 号：TF123.74[冶金工程—粉末冶金]