Patent ID: 11969799
Assignee: MTU AERO ENGINES AG
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  F  C  Y | IPC B  C  F

Claim 0:
1. A method for producing a monolithically formed component of a turbomachine from a metal alloy, which comprises the following steps:
defining at least one first component region within a monolithic component, said first component region having a first property profile that improves a first material characteristic of the at least one first component region, and at least one second component region within said monolithic component, said second component region having a second property profile that improves a second material characteristic of the at least one second component region, the second property profile being different from the first property profile and the second material characteristic being different from the first material characteristic;
providing at least one powder of the metal alloy or several different powders of constituents of the metal alloy;
additive manufacturing of the monolithic component from the at least one powder, wherein the powder is melted for cohesive joining of the powder particles to each other and to a substrate or to an already produced part of the monolithic component, and is additively deposited under such different conditions that different structures of the deposited material are produced in the first component region and in the second component region, wherein the at least one first component region and the at least one second component region have different micro structural formations;
wherein the property profile of the first component region has an improved fatigue strength than that in the second component region and the property profile in the second component region has a higher creep resistance than that in the first component region; and
wherein a fine-grained structure with fine carbide precipitations is formed in the first component region, and a coarse-grained structure with coarse carbide precipitations is formed in the second component region.