On the prismatic precipitate plates in Mg-Ca-In alloys

Y. M. Zhu, M. Weyland, N. V. Medhekar, C. Dwyer, C. L. Mendis, K. Hono, J. F. Nie

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Prismatic precipitate plates in an age hardenable Mg-Ca-In alloy are characterized by atomic-resolution high-angle annular dark-field scanning transmission electron microscopy. The precipitate phase, designated δ, has a monoclinic structure. The proposed crystal structure of the δ is supported by first-principles calculations and multi-slice image simulations. The δ plates form with a considerably large dilatational strain in the direction perpendicular to their habit plane, and this strain is accommodated elastically.

Original languageEnglish (US)
Pages (from-to)16-19
Number of pages4
JournalScripta Materialia
Volume101
DOIs
StatePublished - May 1 2015
Externally publishedYes

Keywords

  • Crystal structure
  • HAADF-STEM
  • Magnesium alloys
  • Precipitates

ASJC Scopus subject areas

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

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