High-strength Zr-Nb-(Cu,Ni,Al) composites with enhanced plasticity

被引：111

作者：

Das, J ^{[1
]}

Löser, W

Kühn, U

Eckert, J

Roy, SK

Schultz, L

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

[2] IFW Dresden, Inst Met Werkstoffe, D-01171 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 26期

关键词：

D O I：

10.1063/1.1587254

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Zr73.5Nb9Cu7Ni1Al9.5 and Zr66.4Nb6.4Cu10.5Ni8.7Al8.0 composites of bcc beta-Zr(Nb) dendrites embedded in a nanocrystalline matrix were prepared by slow cooling from melt. The increase of Nb content from 6.4 to 9 at. % slightly reduces the strength, but considerably improves the plastic elongation under uniaxial compressive loading from epsilon(p)=0.6% to 14.8%. The interaction of strain with dendrites and the nanocrystalline matrix is suggested as origin of the improvement of the mechanical properties. (C) 2003 American Institute of Physics.

引用

页码：4690 / 4692

页数：3

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