Anisotropic deformation of Zr ion irradiated Zr-2.5%Nb micro-pillars at 25 °C

被引：7

作者：

Oviasuyi, Richard O. ^{[1
]}

Klassen, Robert J. ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada

来源：

JOURNAL OF NUCLEAR MATERIALS | 2012年 / 421卷 / 1-3期

基金：

加拿大自然科学与工程研究理事会;

关键词：

PRESSURE TUBE MATERIAL; MECHANICAL-PROPERTIES; NEUTRON-IRRADIATION; PLASTIC ANISOTROPY; SIZE DEPENDENCE; YIELD LOCI; NB ALLOY; BEHAVIOR; COMPRESSION; REDUCTION;

D O I：

10.1016/j.jnucmat.2011.11.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Micro-pillars of 5 mu m diameter and 5 mu m height were made from textured Zr-2.5%Nb pressure tube material and were irradiated with 8.5 MeV Zr+ to simulate neutron irradiation. The yield stress, strain hardening exponent, and degree of strain localization of the micro-pillars when tested at 25 degrees C increased with ion irradiation and the extent of increase was largest in directions containing low (0001) basal pole fraction. This suggests that Zr+ irradiation inhibits prismatic dislocation slip more than pyramidal slip in this material. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：54 / 57

页数：4

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