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. And 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.
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