Slip resistance of interfaces and the strength of metallic multilayer composites

被引：293

作者：

Hoagland, RG

Kurtz, RJ

Henager, CH

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

SCRIPTA MATERIALIA | 2004年 / 50卷 / 06期

关键词：

atomic simulation; strength; interfaces; composites; coherency;

D O I：

10.1016/j.scriptamat.2003.11.059

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have employed atomic simulations to compute the resistance to glide posed by two kinds of interfaces: coherent and semicoherent interfaces, and incoherent interfaces. Both kinds offer significant resistance to crossing of glide dislocations but for different reasons. We discuss the implication of the results of the atomistic calculations to the strength of multilayer composites and show that a simple prediction can be made for the upper bound strength of coherent systems. (C) 2003 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：775 / 779

页数：5

共 8 条

[1] CRITICAL LAYER THICKNESSES FOR INCLINED DISLOCATION STABILITY IN MULTILAYER STRUCTURES [J].

FENG, XX ;

HIRTH, JP .

JOURNAL OF APPLIED PHYSICS, 1992, 72 (04) :1386-1394

[2] ONE-DIMENSIONAL DISLOCATIONS .1. STATIC THEORY [J].

FRANK, FC ;

VANDERMERWE, JH .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1949, 198 (1053) :205-216

[3]

HENAGER CH, IN PRESS PHILOS MAG

[4] CRITICAL LAYER THICKNESS FOR MISFIT DISLOCATION STABILITY IN MULTILAYER STRUCTURES [J].

HIRTH, JP ;

FENG, XX .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (07) :3343-3349

[5] On the strengthening effects of interfaces in multilayer fcc metallic composites [J].

Hoagland, RG ;

Mitchell, TE ;

Hirth, JP ;

Kung, H .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (04) :643-664

[6] Single-dislocation-based strengthening mechanisms in nanoscale metallic multilayers [J].

Misra, A ;

Hirth, JP ;

Kung, H .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (16) :2935-2951

[7] Atomistic simulations of dislocation-interface interactions in the Cu-Ni multilayer system [J].

Rao, SI ;

Hazzledine, PM .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2000, 80 (09) :2011-2040

[8] Strengthening mechanisms in nanostructured copper/304 stainless steel multilayers [J].

Zhang, X ;

Misra, A ;

Wang, H ;

Shen, TD ;

Swadener, JG ;

Embury, JD ;

Kung, H ;

Hoagland, RG ;

Nastasi, A .

JOURNAL OF MATERIALS RESEARCH, 2003, 18 (07) :1600-1606

← 1 →