Molecular dynamics simulations of Ni/NiAl interfaces

被引：9

作者：

Hocker, S. ^{[1
]}

Schmauder, S. ^{[1
]}

Kumar, P. ^{[2
]}

机构：

[1] Univ Stuttgart, Inst Mat Prufung Werkstoffkunde & Festigkeitslehr, D-70569 Stuttgart, Germany

[2] Indian Inst Technol, Dept Met & Mat Engn, Chennai 600036, Tamil Nadu, India

来源：

EUROPEAN PHYSICAL JOURNAL B | 2011年 / 82卷 / 02期

关键词：

BRITTLE-FRACTURE; CRACK; PROPAGATION; BEHAVIOR;

D O I：

10.1140/epjb/e2011-20135-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Molecular dynamics simulations are used to study brittle/ductile interfaces Ni/B2-NiAl under mechanical loading. Uniaxial tensile tests perpendicular to the interface are performed. It is shown that interfaces have influence on strain induced material failure by nucleation of defects. Crack propagation in the interface is investigated by applying load via fixed displacement boundary conditions. Determined crack velocities in the interface are found to be clearly above those in each of the materials.

引用

页码：133 / 141

页数：9

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