Microstructure and thermal stability of a rapidly solidified Al-4Er alloy

A. Ruder; D. Eliezer

doi:10.1007/BF00575385

Microstructure and thermal stability of a rapidly solidified Al-4Er alloy

A. Ruder
, D. Eliezer

Department of Materials Engineering

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The effect of the rapid-solidification melt-spinning process on an Al-4Er alloy has been studied. Compared to the normally solidified master alloy, rapid-solidification processing promotes the formation of a eutectic suppressed, relatively refined microstructure. Varying relative proportions of microstructures occupy the ribbon longitudinal transverse cross section: the featureless zone at the contact surface, the columnar zone in the middle and the equiaxed grains zone with degenerated dendrites at the free surface. The presence of a finely dispersed, coherent Al₃Er secondary equilibrium phase in the contact is evident. Ribbon microhardness remains fairly stable up to 200 ° C and at further elevated temperatures retains higher mean values than the master alloy.

Original language	English
Pages (from-to)	3541-3545
Number of pages	5
Journal	Journal of Materials Science
Volume	25
Issue number	8
DOIs	https://doi.org/10.1007/BF00575385
State	Published - 1 Aug 1990

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1007/BF00575385

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abstract = "The effect of the rapid-solidification melt-spinning process on an Al-4Er alloy has been studied. Compared to the normally solidified master alloy, rapid-solidification processing promotes the formation of a eutectic suppressed, relatively refined microstructure. Varying relative proportions of microstructures occupy the ribbon longitudinal transverse cross section: the featureless zone at the contact surface, the columnar zone in the middle and the equiaxed grains zone with degenerated dendrites at the free surface. The presence of a finely dispersed, coherent Al3Er secondary equilibrium phase in the contact is evident. Ribbon microhardness remains fairly stable up to 200 ° C and at further elevated temperatures retains higher mean values than the master alloy.",

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AU - Eliezer, D.

PY - 1990/8/1

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N2 - The effect of the rapid-solidification melt-spinning process on an Al-4Er alloy has been studied. Compared to the normally solidified master alloy, rapid-solidification processing promotes the formation of a eutectic suppressed, relatively refined microstructure. Varying relative proportions of microstructures occupy the ribbon longitudinal transverse cross section: the featureless zone at the contact surface, the columnar zone in the middle and the equiaxed grains zone with degenerated dendrites at the free surface. The presence of a finely dispersed, coherent Al3Er secondary equilibrium phase in the contact is evident. Ribbon microhardness remains fairly stable up to 200 ° C and at further elevated temperatures retains higher mean values than the master alloy.

AB - The effect of the rapid-solidification melt-spinning process on an Al-4Er alloy has been studied. Compared to the normally solidified master alloy, rapid-solidification processing promotes the formation of a eutectic suppressed, relatively refined microstructure. Varying relative proportions of microstructures occupy the ribbon longitudinal transverse cross section: the featureless zone at the contact surface, the columnar zone in the middle and the equiaxed grains zone with degenerated dendrites at the free surface. The presence of a finely dispersed, coherent Al3Er secondary equilibrium phase in the contact is evident. Ribbon microhardness remains fairly stable up to 200 ° C and at further elevated temperatures retains higher mean values than the master alloy.

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JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 8

ER -

Microstructure and thermal stability of a rapidly solidified Al-4Er alloy

Abstract

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