Producing laminated NiAl with bimodal distribution of grain size by solid–liquid reaction treatment

G.H. Fan, Q.W. Wang, Y. Du, L. Geng, W. Hu, Xiaodan Zhang, Y.D. Huang

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The prospect of combining laminated structure design and grain size tailoring to toughen brittle materials is examined. Laminated NiAl consisting of coarse-grained layers and fine-grained layers was fabricated by solid–liquid reaction treatment of stacking Ni and Al foils. The fracture toughness at ambient temperature has been improved 2–3 times. It is of great potential to extend this approach to other binary alloys, such as Ti–Al, Fe–Al, Nb–Al, etc., where solid–liquid reaction occurs readily at high temperature.
Original languageEnglish
JournalMaterials Science and Engineering: A - Structural Materials: Properties, Microstructure and Processing
Volume590
Pages (from-to)318-322
ISSN0921-5093
DOIs
Publication statusPublished - 2014

Keywords

  • Intermetallics
  • EBSD
  • Mechanical properties
  • Fracture

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