On nanophase stability in eutectoid Zn-Al based alloy films

Y. H. Zhu, Wing Bun Lee, C. Y. Chung, Suet To

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

The structural evolution of the films of an eutectoid Zn-Al based alloy was studied using X-ray diffraction, scanning electron microscopy and transmission electron microscopy techniques. The decomposition of nanophase η′nwas discovered to have started with clustering to form Z-zones and transitional phase, which was accompanied by an eutectoid decomposition, η′n→β′eut+T′. The nanophase β′eutappeared relatively stable during prolonged ageing at 220°C. The stability of the nanophase stability is discussed by comparing it with the phase stability of the bulk microstructural alloy. The strongly preferred orientation at (111) crystal planes of the fcc nanophase β′eutconsiderably retarded the decomposition of the nanophase in the eutectoid Zn-Al based alloy films.
Original languageEnglish
Pages (from-to)106-113
Number of pages8
JournalApplied Surface Science
Volume236
Issue number1
DOIs
Publication statusPublished - 15 Sep 2004

Keywords

  • Eutectoid Zn-Al based alloy
  • Nanophase stability
  • X-ray diffraction

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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