Abstract
The effect of Sn addition on the precipitation in Pb-Ca binary alloys has been studied by means of metallographic observations, hardness and resistivity measurements, and transmission electron microscopy (TEM) observations. With increasing Sn content, the cell advance of discontinuous precipitation is retarded and continuous precipitation occurs preferentially in higher Sn content alloys. The amount of Sn necessary for the retardation is higher for higher Ca contents. The retardation effect is attributed to the segregation of Sn at advancing cell boundaries. Precipitates in ternary alloys are L12-type ordered (Pb, Sn)3Ca.
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Formerly Student, Department of Materials Science and Engineering, Himeji Institute of Technology
This article is based on a presentation made during TMS/ASM Materials Week in the symposium entitled “Atomistic Mechanisms of Nucleation and Growth in Solids,” organized in honor of H.I. Aaronson’s 70th Anniversary and given October 3–5, 1994, in Rosemont, Illinois.
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Tsubakino, H., Tagami, M., Ioku, S. et al. Precipitation in lead-calcium alloys containing tin. Metall Mater Trans A 27, 1675–1682 (1996). https://doi.org/10.1007/BF02649824
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DOI: https://doi.org/10.1007/BF02649824