한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)
- 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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- Pages.336-337
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- 2006
Carbide Grain Growth in Cemented Carbides
- Mannesson, Karin (Division of Physical Metallurgy, Department of Materials Science and Engineering, Royal Institute of Technology) ;
- Agren, John (Division of Physical Metallurgy, Department of Materials Science and Engineering, Royal Institute of Technology)
- 발행 : 2006.09.24
초록
During sintering of cemented carbides abnormal grain growth is often observed but cannot be understood from the classical LSW-theory. A model based on 2-D nucleation of new crystalline layers and a grain-size distribution function is formulated and the equations are solved numerically. Experimental studies and computer simulations show that the initial grain size distribution has a strong effect on the grain growth behavior. For example, a fine-grained powder can grow past a coarser powder.