摘要
采用真空感应熔炼法制备了Cu-Cr-Te合金和Cu-Cr-Te-Y合金,研究了Cr元素及稀土Y元素对铸态Cu-Te合金组织与性能的影响。结果表明,Cu-Cr-Te合金组织由Cu基体、CuTe颗粒相和Cr单质构成,添加Y后,组织中出现TeY/TeY密集相。Cu-Cr-Te合金的抗拉强度及硬度随着Cr含量的增加呈上升趋势,电导率和伸长率下降。加入Y后,合金组织均匀致密,晶粒尺寸细化,晶界清晰。Cu-0.7Cr-0.5Te-0.3Y合金的抗拉强度为235 MPa,较Cu-Te合金提高了46.88%。
Cu-Cr-Te and Cu-Cr-Te-Y alloys were prepared by vacuum induction melting. The effects of chromium and rare earth yttrium addition on the microstructure and properties of as-cast Cu-Te alloys were investigated. The results indicate that the microstructure of Cu-Cr-Te alloy is composed of Cu matrix, CuTe granular phase and Cr, and the TeY/TeY dense phase appears in the microstructure after Y addition. The tensile strength and hardness of Cu-Cr-Te alloy present an upward trend with the increase of Cr content, while the conductivity and elongation are decreased. After Y addition, the structure is compact with finer grain size and clear grain boundary. The tensile strength of Cu-0.7 Cr-0.5 Te-0.3 Y alloy is 235 MPa, which is 46.88% higher than that of Cu-Te alloy.
作者
亚斌
郭泰
孟令刚
周秉文
冯斌
张兴国
Ya Bin;Guo Tai;Meng Linggang;Zhou Bingwen;Feng Bin;Zhang Xingguo(Key Laboratory of Solidification Control and Digital Preparation Technology,Dalian University of Technology;Ningbo Institute of Dalian University of Technology;Ningbo Xingaoda New Metal Materials Co.,Ltd.)
出处
《特种铸造及有色合金》
CAS
北大核心
2022年第10期1202-1209,共8页
Special Casting & Nonferrous Alloys
基金
宁波科技创新2025重大专项基金资助项目(2019B10089)
辽宁省自然科学基金资助项目(2020-MS-103)。
