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

共 21 条

[1] COMPRESSION OF ZIRCONIUM SINGLE-CRYSTALS PARALLEL TO C-AXIS [J].

AKHTAR, A .

JOURNAL OF NUCLEAR MATERIALS, 1973, 47 (01) :79-86

[2] Effect of Zr+ ion irradiation on the mechanical anisotropy of Zr-2.5%Nb pressure tube material [J].

Bose, B. ;

Klassen, R. J. .

JOURNAL OF NUCLEAR MATERIALS, 2010, 405 (02) :138-143

[3] Analysis of steady-state thermal creep of Zr-2.5Nb pressure tube material [J].

Christodoulou, N ;

Turner, PA ;

Tomé, CN ;

Chow, CK ;

Klassen, RJ .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (04) :1103-1115

[4] Anisotropy of yielding in a Zr-2.5Nb pressure tube material [J].

Christodoulou, N ;

Turner, PA ;

Ho, ETC ;

Chow, CK ;

Levi, MR .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (02) :409-420

[5]

Green JA, 2006, ARTHRITIS RHEUM-US, V54, P1705, DOI [10.1002/art.21799, 10.1016/j.actamat.2005.12.004]

[6]

Greer JR, 2005, APPL PHYS A-MATER, V80, P1625, DOI 10.1007/s00339-005-3204-6

[7] Nanoscale gold pillars strengthened through dislocation starvation [J].

Greer, Julia R. ;

Nix, William D. .

PHYSICAL REVIEW B, 2006, 73 (24)

[8] EVOLUTION OF MICROSTRUCTURE IN HCP METALS DURING IRRADIATION [J].

GRIFFITHS, M .

JOURNAL OF NUCLEAR MATERIALS, 1993, 205 :225-241

[9] DEFORMATION-BEHAVIOR OF IRRADIATED ZR-2.5NB PRESSURE TUBE MATERIAL [J].

HIMBEAULT, DD ;

CHOW, CK ;

PULS, MP .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, 25 (01) :135-145

[10] C-COMPONENT DISLOCATIONS IN ZR-2.5 WT-PERCENT NB ALLOY [J].

HOLT, RA ;

GRIFFITHS, M ;

GILBERT, RW .

JOURNAL OF NUCLEAR MATERIALS, 1987, 149 (01) :51-56

← 1 2 3 →