Structural and mechanical properties of γ-irradiated Zr/Nb multilayer nanocomposites

被引：24

作者：

Callisti, M. ^{[1
]}

Lozano-Perez, Sergio ^{[2
]}

Polcar, T. ^{[3
]}

机构：

[1] Univ Southampton, Fac Engn & Environm, Mat Res Grp, Southampton SO17 1BJ, Hants, England

[2] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[3] Univ Southampton, Fac Engn & Environm, Natl Ctr Adv Tribol Southampton, Southampton SO17 1BJ, Hants, England

来源：

MATERIALS LETTERS | 2016年 / 163卷

基金：

英国工程与自然科学研究理事会;

关键词：

Multilayers; Irradiation embrittlement; Scanning/transmission electron microscopy; BEHAVIOR; GROWTH;

D O I：

10.1016/j.matlet.2015.10.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zr/Nb multilayers with periodicities of 10, 30 and 60 nm were prepared by magnetron sputtering and irradiated for prolonged time (1311 h) by gamma-rays with energy of 1.25 MeV and a dose of 510 kGy. A qualitative comparison between XRD patterns acquired before and after irradiation revealed a progressive increase of compressive stress, especially in Nb layers, for smaller periodicities with a consequent increase in hardness measured by nanoindentation. The combination of smaller grain size and radiation-induced defect density distribution, primarily in Nb layers, was found to be responsible for the observed radiation hardening effect. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：138 / 141

页数：4

共 12 条

[1] [Anonymous], ACTA MAT
[2] Defect-interface interactions
Beyerlein, I. J.
Demkowicz, M. J.
Misra, A.
Uberuaga, B. P.
[J]. PROGRESS IN MATERIALS SCIENCE, 2015, 74 : 125 - 210
[3] RADIATION-INDUCED DISLOCATION AND GROWTH BEHAVIOR OF ZIRCONIUM AND ZIRCONIUM ALLOYS - A REVIEW
Choi, Sang Il
Kim, Ji Hyun
[J]. NUCLEAR ENGINEERING AND TECHNOLOGY, 2013, 45 (03) : 385 - 392
[4] Length-scale-dependent mechanical behaviour of Zr/Nb multilayers as a function of individual layer thickness
Frutos, E.
Callisti, M.
Karlik, M.
Polcar, T.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 632 : 137 - 146
[5] Gilmore G., 2008, Practical Gamma Ray Spectrometry
[6] Effect of grain boundary character on sink efficiency
Han, W. Z.
Demkowicz, M. J.
Fu, E. G.
Wang, Y. Q.
Misra, A.
[J]. ACTA MATERIALIA, 2012, 60 (18) : 6341 - 6351
[7] Effect of γ-ray irradiation on Nd-Fe-B alloys
Han, Young Chul
Lee, Song
Kwon, Hae Woong
Kang, Young Soo
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 260 (02) : 599 - 602
[8] Arrest of He bubble growth in Cu-Nb multilayer nanocomposites
Hattar, K.
Demkowicz, M. J.
Misra, A.
Robertson, I. M.
Hoagland, R. G.
[J]. SCRIPTA MATERIALIA, 2008, 58 (07) : 541 - 544
[9] Views of TAGSI on the effects of gamma irradiation on the mechanical properties of irradiated ferritic steel reactor pressure vessels
Knott, JF
English, CA
Weaver, DR
Lidbury, DPG
[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2005, 82 (12) : 929 - 940
[10] Gamma displacement cross-sections in various materials
Kwon, J
Motta, AT
[J]. ANNALS OF NUCLEAR ENERGY, 2000, 27 (18) : 1627 - 1642

← 1 2 →