Published November 2015 | Version v1
Journal article Metadata-only

Irradiation toughening in a hierarchical structured alloy

Creators

  • 1. College of Science, Yanshan University, Qinhuangdao 066004 (China)
  • 2. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 (China)
  • 3. Department of Environmental Sciences, Tokyo Gakugei University, Tokyo 184-8501 (Japan)
  • 4. Department of Materials Science and Engineering, Advanced Materials Laboratory, Tsinghua University, Beijing 100084 (China)

Description

The irradiation of high-energy particles always leads to the embrittlement of metallic materials. Here, we report an abnormal irradiation toughening phenomenon in a hierarchical structured ZrTi, which results from the irradiation-induced lattice relaxation that yields an enhanced ductility with a slight decrease of strength. Positron annihilation measurements reveal that the lattice relaxation dominantly originates from a recombination of irradiation-induced interstitials (i.e., Ti atoms) with preexisting dislocation-associated vacancies. This study provides an approach to suppress the irradiation-induced brittleness in metallic materials

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2015.06.017

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2015.06.017;
PII
S1359-6462(15)00264-X;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
108
Journal Page Range
p. 64-67
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47041238
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANNIHILATION; BRITTLENESS; DISLOCATIONS; DUCTILITY; EMBRITTLEMENT; INTERSTITIALS; IRRADIATION; PHYSICAL RADIATION EFFECTS; POSITRONS; RECOMBINATION; STRESS RELAXATION; TITANIUM ALLOYS; VACANCIES; ZIRCONIUM ALLOYS
Descriptors DEC
ALLOYS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTONS; LINE DEFECTS; MATTER; MECHANICAL PROPERTIES; PARTICLE INTERACTIONS; POINT DEFECTS; RADIATION EFFECTS; RELAXATION; TENSILE PROPERTIES; TRANSITION ELEMENT ALLOYS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.