ON THE THERMODYNAMICS OF MARTENSITE NUCLEATION

被引：27

作者：

ROITBURD, AL ^{[1
]}

机构：

[1] UNIV MARYLAND, COLLEGE PK, MD 20742 USA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1990年 / 127卷 / 02期

关键词：

D O I：

10.1016/0921-5093(90)90313-R

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Estimations of nucleation barriers for single-domain and multiple-domain states of a martensite phase have been obtained. A macroscopic approach, considering the free energy of a heterophase system to be a sum of the energy of the elastically stressed equilibrium phases and the energy of interfaces, was used. It has been shown that for the martensitic transformation in steels and iron alloys the nucleation of single-domain (single-crystal) martensite is impossible. The nucleation barrier for multiple-domain (twinned) martensite has been found to be of 103 times less than former estimations that had rejected any possibility of the homogeneous nucleation of martensite. © 1990.

引用

页码：229 / 238

页数：10

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