Design of Radiation Tolerant Nanostructured Metallic Multilayers

被引：54

作者：

Zhang, X. ^{[2
]}

Fu, E. G. ^{[1
]}

Li, Nan ^{[1
]}

Misra, A. ^{[1
]}

Wang, Y. -Q. ^{[1
]}

Shao, L. ^{[3
]}

Wang, H. ^{[4
]}

机构：

[1] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA

[2] Texas A&M Univ, Dept Mech Engn, Mat Sci & Engn Program, College Stn, TX 77843 USA

[3] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA

[4] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA

来源：

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 2012年 / 134卷 / 04期

关键词：

radiation damage; metallic multilayers; size effect; radiation hardening; He bubbles; STACKING-FAULT TETRAHEDRA; GAS-BUBBLE SUPERLATTICE; IRRADIATION CREEP; DISPLACEMENT CASCADES; DEFECT ACCUMULATION; GRAIN-BOUNDARIES; STAINLESS-STEEL; BCC METALS; DAMAGE; MICROSTRUCTURE;

D O I：

10.1115/1.4006979

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We review He ion induced radiation damage in several metallic multilayer systems, including Cu/V, Cu/Mo, Fe/W, and Al/Nb up to a peak dose of several displacements per atom (dpa). Size dependent radiation damage is observed in all systems. Nanolayer composites can store a very high concentration of He. Layer interfaces promote the recombination of opposite type of point defects and hence reduce the accumulative defect density, swelling, and lattice distortion. Interfaces also alleviate radiation hardening substantially. The chemical stability of interfaces is an important issue when considering the design of radiation tolerant nanolayer composites. Immiscible and certain miscible systems possess superior stability against He ion irradiation. Challenge and future directions are briefly discussed.

引用

页数：9

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