Laser-processing-induced phase transformation in Zn-Al-based alloy

Y. H. Zhu, J. A. Chavez-Carvayar, Hau Chung Man, M. Villagran

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

Microstructure and phase transformation of a furnace-cooled eutectoid Zn-Al-based alloy were studied after laser beam bombardment using low-angle x-ray diffraction (XRD) and backscattered scanning electron microscopy (BSEM). It was found that the microstructure of the laser-beam-treated specimen consisted mainly of the supersaturated Zn-rich β′sphase particulates of about 1-2 μm in diameter. Three structure morphologies were observed. Microcracking occurred in the laser-beam-affected zone during laser processing. Two laser-processing-induced phase transformations, i.e., decomposition of the η′FCphase and a four-phase transformation, were detected using XRD and BSEM techniques, similar to phase transformations that occurred in the same eutectoid Zn-Al-based alloy after various thermal and thermomechanical processing procedures.
Original languageEnglish
Pages (from-to)4188-4194
Number of pages7
JournalJournal of Materials Research
Volume14
Issue number11
DOIs
Publication statusPublished - 1 Jan 1999

ASJC Scopus subject areas

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

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