Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.272-273
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- 2006
Pulsed Electric Current Sintering of Nano-crystalline Iron-base Powders
- Li, Yuanyuan (College of Mechanical Engineering, South China University of Technology) ;
- Long, Yan (College of Mechanical Engineering, South China University of Technology) ;
- Li, Xiaoqiang (College of Mechanical Engineering, South China University of Technology) ;
- Liu, Yunzhong (College of Mechanical Engineering, South China University of Technology)
- Published : 2006.09.24
Abstract
A new process of pulsed electric current sintering was developed. It combines compaction with activated sintering effectively and can manufacture bulky nano-crystalline materials very quickly. A nano-structured steel is obtained with high relative density and hardness by this process. The average grain size of iron matrix is 58nm and the carbide particulate size is less than 100 nm. The densification temperature of ball-milled powders is approximately