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The mechanisms of grain refinement in dilute aluminum alloys

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Abstract

The contribution of the peritectic reaction in producing grain refinement in aluminum alloys has been studied in three binary aluminum systems. It appears that titanium has a unique effect compared with zirconium or chromium; there is evidence of a refinement mechanism associated with the peritectic reaction in Al−Ti alloys which was not observed in the other two systems. Additions of boron to Al−Ti and Al−Zr alloys emphasizes the difference in effect of these two transition elements as grain refiners. The significance of the present work is discussed with reference to conflicts apparent in earlier experimental data.

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Authors and Affiliations

  1. Department of Metallurgy, Queen's University, Kingston, Ontario, Canada

    G. W. Delamore & R. W. Smith

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  1. G. W. Delamore
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  2. R. W. Smith
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Delamore, G.W., Smith, R.W. The mechanisms of grain refinement in dilute aluminum alloys. Metall Trans 2, 1733–1738 (1971). https://doi.org/10.1007/BF02913899

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  • DOI: https://doi.org/10.1007/BF02913899

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