A MICROMECHANICAL MODEL FOR TRANSFORMATION PLASTICITY IN STEELS

被引：57

作者：

FISCHER, FD

机构：

[1] Institute of Mechanics, University for Mining and Metallurgy

来源：

ACTA METALLURGICA ET MATERIALIA | 1990年 / 38卷 / 08期

关键词：

D O I：

10.1016/0956-7151(90)90121-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transformation plasticity is the irreversible deformation behaviour of transforming specimens even under a loadstress-state with an equivalent stress significantly lower than the yield stress. This effect is caused by the plastic adaption of the transformation induced volume and shape change of microregions being parts of a grain. Since the corresponding microstress states must be in global equilibrium with the load stress state a semianalytical relation between the global deformations, the load stress state and transformation parameters can be given under the assumption of the same final strain tensor in each micro-region. Especially the influence of the shape change and comparison with experimental data are presented. © 1990.

引用

页码：1535 / 1546

页数：12

共 21 条

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