Effect of minor elements on solidification cracking and dilution of alloy 625 powders in laser cladding

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    13 Sitaatiot (Scopus)

    Abstrakti

    The general specification of nickel-base alloy 625 is quite permissible allowing relatively large variations in chemical composition. In directed energy deposition processes including laser cladding and additive manufacturing, the powder plays a key role in the properties of final products. Therefore, it is important to select the highest-quality powder. Several commercially available alloy 625 powders were characterized and deposited on mild steel by the laser cladding process using a coaxial powder feeding method and a single bead. Clad layer characterization consisted of determination of dilution and quantification of hot cracks. The results showed that powders containing the lowest amount of impurity elements (S, P, B) were the most resistant to hot cracking. Ti and Al were beneficial if impurity element contents were high.
    AlkuperäiskieliEnglanti
    Artikkeli012014
    Sivut1-7
    Sivumäärä7
    JulkaisuJournal of Laser Applications
    Vuosikerta29
    Numero1
    DOI - pysyväislinkit
    TilaJulkaistu - 6 tammik. 2017
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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