Patent ID: 7250134
Filing Date: 2007-07-31
Classification: B33Y,C22C

Abstract:
1. A method for fabricating a steel part having a target bulk composition T of iron (Fe) and N additional basic elements E 1 , E 2 , . . . E N , where N≧1, each present in a respective mass percentage M 1,T , M 2,T , . . . M N,T , and a melting point depressant agent E MPD , present in a mass percentage M MPD,T , comprising the steps of: a. providing a skeleton of interconnected adhered metal particles having a network of interconnected porosities throughout, said particles packed at a packing fraction V b. providing an infiltrant having a composition consisting essentially of: said infiltrant composition being complementary to said skeleton composition, relative to said bulk target composition T; and d. infiltrating said skeleton with said infiltrant, at an infiltration temperature T