| Title |
Effects of Volume Fraction on the Application of the Growth kinetic Equations of Second Phase Particles |
| Authors |
이상윤(Sang Yun Lee); 최진원(Jin Won Choi) |
| Abstract |
The diffusion- controlled coarsening behavior of the second phase particles situated along the grain boundary in the ferrite matrix has been investigated theoretically and experimentally. The effect of volume fraction Φ on the growth rate of precipitate particles has been included in the equation obtained for 0.63 carbon steel. The average particle size has been found to increase as t¼ after a long elapse of heat treating time, irrespective of the value of Φ. The value for the limit-of volume fraction of cementite particles in ferrite matrix has been calculated to be 0.4233. In general, it has been shown that the growth rate of the grain boundary particles increases with increasing volume fraction. The theoretical growth rate equation is give as follows:(수식) |