摘要
运用Matlab软件对AlCoCr_xFeMo_yNi系高熵合金的判据进行了控制和优化,反向设计了一种以BCC结构为主的多相AlCoCr_2FeMo_（0.5）Ni高熵合金。分别对其铸态和固溶态组织和硬度进行了研究。结果表明：该合金组织由BCC结构的基体相、NiAl金属间化合物和σ相组成,硬度远高于传统碳钢渗碳淬火后的硬度,达到了953HV0.5。在1200℃下发生明显的固溶现象,硬度降低,但延长固溶时间,该合金组织和硬度变化不显著。
The criterions of AlCoCr_xFeMo_yNi high entropy alloys was controlled and optimized by using of Matlab software,and a kind of multiphase AlCoCr_2FeMo_（0. 5） Ni high entropy alloy based on BCC structure was designed with reverse thinking. The as cast and solution treated microstructure and hardness were studied. The results show that the microstructure of the alloy is composed of BCC matrix,Ni Al intermetallic compound and sigma phase,and the hardness reaches 953 HV0. 5,much higher than that of the conventional carbon steel after carburizing.Heating the alloy at 1200 ℃,there is an obvious phenomenon of solid solution,and the hardness decreases,however,there is no significant change in microstructure and hardness of the alloy when the solution time is prolonged.
作者
叶奇鲁
杨钢
龚志华
陈清明
Ye Qilu1,2, Yang Gang2 , Gong Zhihua2 , Chen Qingming1(1. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming Yunnan 650032, China; 2. Institute for Special Steels, Central Iron and Steel Research Institute, Beijing 100089, Chin)
出处
《金属热处理》
CAS
CSCD
北大核心
2018年第3期10-14,共5页
Heat Treatment of Metals
