- The observed fractures are caused by the formation of a continuous network of NbC-Mo2C;
- The INCOLOY 825 alloys for the production of casting are more sensitive to the observed detrimental phenomena because they are featured by a higher concentration of Nb (as a strengthening and stabilizing element) than the alloy used for forging;
- the solubilization of the alloy for te foundry application has to be performed at leat at 1180°C to avoid the formation of an interconneted carbide network that induces brittleness in the castings.

