MICROSTRUCTURES AND THERMAL PROPERTIES OF RAPIDLY SOLIDIFIED ALUMINUM-RARE EARTH ALLOYS.

D. Eliezer, S. J. Savage, Y. R. Mahajan, F. H. Froes

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

Rapidly solidified (RS) Al-Er, Al-Nd, and Al-Gd ribbons were prepared by pendant drop melt extraction (PDME). The microstructures were studied in detail by optical and transmission electron microscopy. A wide range of microstructures are observed, including 'conventional' RS type zones, a cellular structure surrounded by a degenerate eutectic and coupled (lamellar) eutectic structures. A bimodal precipitate distribution is seen in many areas of the ribbons. A series of isochronal heat treatments was conducted to determine the relative thermal stability of these microstructures, which were evaluated by Knoop microhardness measurements.

Original languageEnglish
Title of host publicationMaterials Research Society Symposia Proceedings
EditorsBill C. Giessen, Donald E. Polk, Alan I. Taub
PublisherMaterials Research Soc
Pages293-298
Number of pages6
ISBN (Print)0931837235
StatePublished - 1 Dec 1986
Externally publishedYes

Publication series

NameMaterials Research Society Symposia Proceedings
Volume58
ISSN (Print)0272-9172

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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