Sökning: "Krishna Jonnalagadda"

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  1. 1. Influence of Graphite type on copper diffusion in P/M copper steels

    Master-uppsats, KTH/Materialens processteknologi

    Författare :Krishna Praveen Jonnalagadda; [2012]
    Nyckelord :graphite dissolution; copper diffusion; compact swelling; dimensional change in Fe – Cu –C alloys;

    Sammanfattning : One main reason for the use of Fe-Cu-C system in PM industry is the presence of liquid phase (copper) at the start of sintering (1120oC). The diffusion of liquid copper into iron causes swelling in the structure. This in turn can cause high dimensional change and, if not controlled properly, may cause distortion. LÄS MER