Liquid Metal Embrittlement of 4145 Steel by Lead-Tin and Lead-Antimony Alloys

    Volume 2, Issue 6 (November 1974)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 7


    Breyer, NN
    Professor, Illinois Institute of Technology, Chicago, Ill.

    Johnson, KL
    Metallurgist, Chicago Bridge Ltd, Wembley,

    Abstract

    Pure lead soldered to the gage section of 200-ksi (1379-MPa) 4145 steel tensile specimens tested at temperatures ranging from room temperature to 700°F (371°C) exhibit a severe loss in ductility between 400 and 680°F (204 and 360°C). The ductility, as measured by reduction of area, recovered at 695°F (368°C), the so-called brittle-to-ductile recovery temperature. This recovery temperature was shifted to higher temperatures in a sensitive manner by relatively small amounts of either tin or antimony added to alloy the externally applied lead.


    Paper ID: JTE11678J

    DOI: 10.1520/JTE11678J

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    Author
    Title Liquid Metal Embrittlement of 4145 Steel by Lead-Tin and Lead-Antimony Alloys
    Symposium , 0000-00-00
    Committee D30