Abstract: A method of fabricating a part by selectively melting powder is provided. The method includes: depositing a first layer of a first powder having a first element as its main element; depositing, on the first layer, a second layer of a second powder having a second element as its main element, which second element is different from the first element; and moving a first energy beam over the second layer, the energy delivered by the first beam serving to initiate an exothermic reaction between the first element and the second element, the energy given off by the exothermic reaction acting to locally melt together the first and second layers.

Abstract: Method for manufacturing a turbine engine part, said method comprising a step (101) of producing said part by powder metallurgy using a material forming the substrate of said part, then a finishing operation comprising at least one first step (103), in which a determined material is deposited onto at least one surface (S1) of the substrate of said part after the powder metallurgy production step (101), and a second step (104) corresponding to a heat treatment operation, so as to form a smooth coating for said surface (S1), characterised in that said determined material is a metal material, so as to form a metal coating.

Abstract: A method of fabricating a part by selectively melting powder, the method comprising the following steps: depositing a first layer (12) of a first powder (2) having a first element as its main element; depositing, on the first layer, a second layer (15) of a second powder (22) having a second element as its main element, which second element is different from the first element; and moving a first energy beam (11), e.g. a laser beam or an electron beam, over the second layer (15), the energy delivered by the first beam serving to initiate an exothermic reaction between the first element and the second element, the energy given off by the exothermic reaction acting to locally melt together the first and second layers (12, 15).