TITANIUM ALUMINIDE APPLICATION PROCESS AND ARTICLE WITH TITANIUM ALUMINIDE SURFACE

摘要

A titanium aluminide application process and article with a titanium aluminide surface are disclosed. The process includes cold spraying titanium aluminide onto an article within a treatment region to form a titanium aluminide surface. The titanium aluminide surface includes a refined gamma/alpha2 structure and/or the titanium aluminide is cold sprayed from a solid feedstock of a pre-alloyed powder.

主权项

1. A turbine component, comprising a substrate and a titanium aluminide surface layer bonded to the substrate, the titanium aluminide surface layer of the turbine component including a gamma/alpha2 structure having a grain size of between about 5 nanometers and about 100 microns, wherein the titanium aluminide surface layer is formed from a solid feedstock and retains phases and microstructures present in the solid feedstock.