An explanation to the anomalous Avrami exponent

被引：125

作者：

Sun, NX ^{[1
]}

Liu, XD ^{[1
]}

Lu, K ^{[1
]}

机构：

[1] ACAD SINICA,INST MET RES,INT CTR MAT PHYS,SHENYANG 110015,PEOPLES R CHINA

来源：

SCRIPTA MATERIALIA | 1996年 / 34卷 / 08期

关键词：

D O I：

10.1016/1359-6462(95)00657-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A modified form of KJMA equations is derived by assuming a distribution of pre-existing nuclei, and nucleation rate. It is found that the inhomogeneous distribution of nuclei can result in two effects: 1) lowering the Avrami exponent, and 2) nonlinearity of the Avrami plot, especially at high x. The modified equations can be an explanation to the widely observed anomalous Avrami exponents and nonlinear plots.

引用

页码：1201 / 1207

页数：7

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