Characterization of Nanocrystalline CoCrFeNiCuAI High-entropy Alloy Powder Processed by Mechanical Alloying
The equiatomic multicomponent CoCrFeNiCuAl high-entropy alloy powder was synthesized by mechanical alloying. The effects of milling time and heat treatment on the structure and morphology of the ball milled alloy were investigated. Single BCC solid solution structure appears when the alloy is ball milled more than 30h. The 60h ball milled alloy powder shows a mean panicle size of 3 μm, which is actually hard agglomerations of nanosized crystals with crystalline size less than 10nm. The 60h ball milled alloy exhibits good chemical homogeneity. The single BCC solid solution structure transforms to a BCC and a FCC phases when anneailed at 600℃ for lh, which can be attributed to the supersaturatable solid solution formation during the mechanical alloying process.
High-entropy alloy Mechanical alloying Microstructure Annealing
Kuibao Zhang Zhengyi Fu Jinyong Zhang Weimin Wang Hao Wang Yucheng Wang Qingjie Zhang
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology, Wuhan 430070, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
383-386
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）