Ti-6Al-4V (L-PBF, Colibrium Additive Ti6Al4V Grade 5, stress-relieved)

Colibrium Additive Ti6Al4V Grade 5 is that maker's Ti-6Al-4V powder grade, printed by laser powder bed fusion and given a stress-relief heat treatment. As built, the rapid solidification produces fine acicular martensite within columnar prior-beta grains elongated along the build direction, with high residual stress and directional properties. Stress relief, usually done while parts are still on the build plate and before support removal, reduces residual stress and distortion and partly decomposes the martensite, but it does not close internal porosity. Parts typically still need support removal and machining or finishing of the rough as-built surfaces. Printed parts serve as lightweight aerospace brackets and housings, medical device components and complex industrial parts. Every value on this page is read from Colibrium Additive's own material data sheet — quoted, cited and dated — and is the maker's statement about printed material, not a measurement by MatWorld; none has yet been reviewed by a person.