Published June 30, 2003 | Version v1
Journal article Metadata-only

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

Creators

  • 1. IFW Dresden, Institut fuer Metallische Werkstoffe, Postfach 270016, D-01171 Dresden (Germany)
  • 2. Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur-721 302 (India)

Description

Zr73.5Nb9Cu7Ni1Al9.5 and Zr66.4Nb6.4Cu10.5Ni8.7Al8.0 composites of bcc β-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 εp=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

Additional details

Identifiers

DOI
10.1063/1.1587254;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
82
Journal Issue
26
Journal Page Range
p. 4690-4692
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35048081
Subject category
S36: MATERIALS SCIENCE; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ALUMINIUM ALLOYS; COPPER ALLOYS; DEFORMATION; DENDRITES; DISLOCATIONS; ELONGATION; MECHANICAL PROPERTIES; NANOSTRUCTURES; NICKEL ALLOYS; NIOBIUM ALLOYS; PLASTICITY; ZIRCONIUM ALLOYS
Descriptors DEC
ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; DEFORMATION; LINE DEFECTS; MECHANICAL PROPERTIES; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
(c) 2003 American Institute of Physics.