Structural characterization and stress-relaxation behavior of superlattice Cu5Zr

Kyou Hyun Kim, Jae Pyoung Ahn, Young Min Kim, Byeong Joo Lee, Jae Chul Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A self-organized superlattice containing modulated layers in Cu5Zr was manufactured by casting a Cu-Zr system. Substitutional Zr atoms caused compressive stress in the superlattice so that periodic stress fields were formed with a long-range order along the 〈1 1 0〉 directions on {1 1 1} for stress relaxation. On the other hand, it was demonstrated theoretically by atomistic simulations that a superlattice could form easily due to the large negative enthalpy of formation in the structure (-12.890 kJ/mol of atoms).

Original languageEnglish
Pages (from-to)5-8
Number of pages4
JournalScripta Materialia
Volume58
Issue number1
DOIs
Publication statusPublished - 2008 Jan

Keywords

  • Casting
  • High-resolution electron microscopy (HREM)
  • Monte Carlo techniques
  • Stress-relaxation
  • Superlattice

ASJC Scopus subject areas

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

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