摘要
采用金相显微镜、SEM、抗拉强度及硬度测试等手段,对累积叠轧Cu/Nb复合板材的组织结构、断口形貌及力学性能进行研究,分析了累积叠轧、退火处理对Cu/Nb金属复合板材微观组织结构及室温拉伸断裂行为的影响作用。结果表明:累积叠轧使Cu/Nb复合板材的强度和硬度升高,退火使Cu/Nb复合板材的强度和硬度下降。当退火温度为300℃时,能使Cu/Nb复合板材强度和硬度分别下降至约240 MPa和75 HV。当退火温度提高时,Cu/Nb复合板材的硬度在70-80 HV的范围内波动。在试验温度范围内退火,Cu/Nb界面处也无Cu、Nb元素扩散。此外,增加焊合界面的轧制次数及退火处理有助于Cu/Nb复合板材焊合界面结合强度的提高。
The microstructure,fracture morphology and mechanical properties of the Cu/Nb composite plates produced by accumulative rollbonding( ARB) process were investigated using optical microscopy,scanning electron microscopy,strength and hardness measurements.The effect of ARB and annealing on microstructure and tensile deformation behavior of ARBed Cu/Nb composite plates was analyzed. The results show that the strength and hardness of the Cu/Nb composite plates increased after ARB process. The strength and hardness of ARBed Cu/Nb composite plates decrease after annealing treatment,to 240 MPa and 75 HV after annealed at 300 ℃ for 1 h respectively. With annealing temperature increasing,the hardness of the annealed samples is in the range of 70-80 HV. The diffusion between Cu/Nb interfaces does not occur during annealing. In addition,the increased number of ARB cycles and the annealing treatment are helpful to the bonding efficiency of Cu/Cu interfaces in the Cu/Nb composite plates.
作者
罗泽宇
罗富鑫
谢伟滨
Luo Zeyu;Luo Fuxin;Xie Weibin(School of Materials Science and Engineering,Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000,China;Institute of Engineering Research,Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000,China;Jiangxi Yingtan Engineering Research Center for Copper Industry,Yingtan Jiangxi 335000,China;Jiangxi Nonferrous Metal Processing Engineering Technology Research Center,Ganzhou Jiangxi 341000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2018年第8期93-98,共6页
Heat Treatment of Metals
基金
江西省教育厅科技项目(GJJ160654)
江西理工大学博士科研启动基金(jxxjbs17014)
关键词
累积叠轧
Cu/Nb复合材料
退火处理
断口形貌
性能
accumulative roll bonding (ARB)
Cu/Nb composites
annealing
fracture morphology
properties