摘要
研究了不同Cu含量的FeCoNiCuxAl高墒合金的微观引织和性能特点，（x表示摩尔比，x=0、0．5、0．8、1．0、1．5、2），分别用X衍射、扫描电镜和维氏硬度测试Cu含量的变化对合金组织和硬度的影响。研究表明，此合金体系容易形成简单FCC结构和BCC结构的固溶体，Cu含量增加会促进FCC固溶体的形成。Ca的含量的变化对合金硬度的影响较大。随着Cu含量的增加，合金的硬度显著降低，硬度的高低主要取决于显微组织形态和体系中BCC固溶体的含量的多少。
FeCoNiCuxAl high-entropy alloy system was synthesized using a arc melting method. Cu content effect on mi crostructures and hardness was investigated with X-ray diffraction, scanning electron microscopy and Vickers hardness testing. The alloys exhibit quite simple FCC and BCC solid solution phases. Cu element enhances the formation of the FCC phase in the alloy system. Cu significantly effects the hardness of the alloys. The hardness decreases with Cu increasing, the result shows that the hardness is dependent on the microstructure and the formation of BCC solid solution.
出处
《中国材料科技与设备》
2008年第6期37-40,共4页
Chinese Materials Science Technology & Equipment
关键词
高熵合金
成分影响
微观组织
性能
High-entropy alloy
Elemental effect
Mierostructure
Hardness
