Surface orientation dependence of irradiation-induced hardening in a polycrystalline zirconium alloy

H. L. Yang, S. Kano, J. McGrady, J. J. Shen, Y. Matsukawa, D. Y. Chen, K. Murakami, H. Abe

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

A combination of ion-accelerator irradiation, nanoindentation tests, and electron backscatter diffraction analysis was utilized to probe the crystal orientation dependence of irradiation-induced hardening in a Zr alloy. The nanohardness at the [0001] orientation exhibited the highest value, which gradually decreased when the orientation deviated from the [0001] axis to the [101¯0] and 21¯1¯0 axes, regardless of the irradiation dose. Crystal-orientation-dependent irradiation-induced hardening is further confirmed. The lowest hardening was observed at [0001] orientation, and the hardening effect intensified toward the [101¯0] and [21¯1¯0] orientations, reaching the maximum at a rotation angle of ~55° with respect to [0001].

Original languageEnglish
Pages (from-to)209-213
Number of pages5
JournalScripta Materialia
Volume162
DOIs
Publication statusPublished - 2019 Mar 15

Keywords

  • Crystal orientation
  • Electron backscatter diffraction (EBSD)
  • Irradiation hardening
  • Nanoindentation
  • Zr alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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