PLASTIC-DEFORMATION MECHANISMS OF BETA-TREATED ZIRCONIUM

被引：33

作者：

CREPIN, J ^{[1
]}

BRETHEAU, T ^{[1
]}

CALDEMAISON, D ^{[1
]}

机构：

[1] ECOLE POLYTECH, MECAN SOLIDES LAB, CNRS, URA 317, F-91128 PALAISEAU, FRANCE

来源：

ACTA METALLURGICA ET MATERIALIA | 1995年 / 43卷 / 10期

关键词：

D O I：

10.1016/0956-7151(95)90154-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study aims to determine the different deformation mechanisms of grade 702 zirconium under uniaxial tension and at room temperature. The grade 702 zirconium tested had undergone an alpha --> beta --> alpha cycle at a slow cooling rate (similar to 15 degrees s(-1)). Three deformation mechanisms were identified: prismatic slip, (10 (1) over bar 2) [10 (1) over bar (1) over bar] twinning and (11 (2) over bar 1) [11 (2) over bar (6) over bar] twinning. The critical resolved shear stress for prismatic slip, (10 (1) over bar 2) [10 (1) over bar (1) over bar] twinning and (11 (2) over bar 1) [11 (2) over bar (6) over bar] twinning was also determined. The effect of the non-uniform redistribution of the hardening elements on location through the grain of the various mechanisms and on the tendency for localized deformation to develop is also discussed.

引用

页码：3709 / 3719

页数：11

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