Pinning efficiency of austenite grain boundary by Cubic shaped TiN particle : Modification of Zener coefficient for Cubic shaped particle

입방체 TiN 석출물에 의한 오스테나이트 결정립 성장 억제 효과

Zener coefficient on cubic shaped particle was proposed. Most previous researches about Zener coefficient were developed on the assumption that the shape of particle is spherical. But, some particle has other shape, and modification of Zener coefficient needs with shape of particle. In this research, TiN particle that has a cubic shape was considered. A Zener coefficient of a cubic shape TiN was theoretically calculated with appropriate assumptions. And, using a semi-empirical method, Zener coefficient was also measured. Finally, the proposed Zener coefficient was proved by comparing with experimentally measured data.