ON THE CONSTITUTIVE RELATIONS FOR DELTA-]ALPHA AND ALPHA-]DELTA MARTENSITIC-TRANSFORMATION PLASTICITY IN PLUTONIUM ALLOYS

被引：16

作者：

ADLER, PH

OLSON, GB

STEVENS, MF

GALLEGOS, GF

机构：

[1] UNIV CALIF LOS ALAMOS SCI LAB, DIV MAT SCI & TECHNOL, LOS ALAMOS, NM 87545 USA

[2] UNIV CALIF LAWRENCE LIVERMORE NATL LAB, DEPT CHEM & MAT SCI, LIVERMORE, CA 94550 USA

[3] NORTHWESTERN UNIV, DEPT MAT SCI & ENGN, EVANSTON, IL 60208 USA

来源：

ACTA METALLURGICA ET MATERIALIA | 1992年 / 40卷 / 05期

关键词：

D O I：

10.1016/0956-7151(92)90085-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A constitutive model for transformation plasticity based on isothermal martensitic kinetics is applied to delta --> alpha and alpha --> delta transformation in Pu alloys. The model is in good agreement with available data for the delta --> alpha-transformation plasticity behavior of PuGa alloys in unixial compression as a function of composition, temperature and strain rate. Application to alpha --> delta-transformation in uniaxial tension and crack-tip stress states indicates that general transformation in uniaxial tension is precluded by premature brittle fracture of the alpha-phase, but localized transformation will occur at crack tips as supported by metallographic observations.

引用

页码：1073 / 1082

页数：10

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