Product Code: ICA12_505

A Comparison of Hot Cracking Sensibility of Some Alloy 625 Powders on Laser Cladding
Authors:
Jonne Näkki, Department of Materials Science, Tampere Univ. of Technology, Technology Centre Ketek Ltd; Kokkola Finland
Jari Tuominen, Department of Materials Science, Tampere Univ. of Technology; -
Petri Vuoristo, Department of Materials Science, Tampere Univ. of Technology; -
Presented at ICALEO 2012

Some properties of laser claddings made with several
commercially available alloy 625 powders were
investigated. Nickel based alloy 625, generally
known also as Inconel 625, is widely used also on
laser claddings due to its good corrosion properties in
various environments. The general specification of
alloy 625 is quite permissible and it has been
discovered that there can be relatively large variation
on properties of alloy 625 powders depending on
powder manufacturer and powder batches. These
variations on powder lead to variations on properties
of subsequent cladding. The emphasis on this study is
especially on the variation of the tendency to hot
cracking on laser cladding.