ON THE CRITICAL DEFORMATION OF ZR-NB ALLOYS WITH NB CONTENTS UP TO 2.5-PERCENT

被引：5

作者：

CHIRKIN, AV ^{[1
]}

ELYAZGI, A ^{[1
]}

机构：

[1] TAJURA NUCL RES CTR,DEPT MAT SCI,TRIPOLI,LIBYA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1990年 / 172卷 / 03期

关键词：

Crystallization - Metallography - Microscopic Examination;

D O I：

10.1016/0022-3115(90)90284-T

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The methods of metallographic analysis have been employed to study the dependence of the critical degree of deformation Ecr on the Nb content in cast Zr-Nb alloys with Nb contents up to 2.5% by mass. After compression testing at room temperature the grains with different orientations are deformed with different preferential mechanisms and degrees of deformation, as a result of the high anisotropy of the α-Zr crystalline lattice. Subsequent annealing develops this inhomogeneity and leads to the stabilization of structural differences. Consequently, recrystallized grains and deformed grains without recrystallization could be observed in the wide range of deformations applied. The conception of Ecr is in this case becomes somewhat diffuse. © 1990.

引用

页码：297 / 303

页数：7

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