Derimow, N.
, Hanson, K.
, Moser, N.
, Kafka, O.
, Benzing, J.
and Hrabe, N.
(2022),
Surface globularization generated by standard PBF-EB Ti-6Al-4V processing achieves an improvement in fatigue performance, International Journal of Fatigue, [online], https://doi.org/10.1016/j.ijfatigue.2022.106810, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=933589
(Accessed October 1, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Surface globularization generated by standard PBF-EB Ti-6Al-4V processing achieves an improvement in fatigue performance
Published
Author(s)
, Keenan Hanson, , , ,
Abstract
Standard electron beam powder-bed fusion Ti-6Al-4V powder recovery and hot-isostatic pressing has been found to result in a surface layer microstructure change to globular α/β. Thickness control of this surface layer up to 15 μm was demonstrated by varying powder recovery blasting working distance and duration. This surface globular layer was found to improve high-cycle rotating bending fatigue strength at 10 M cycles by 60 MPa for specimens with smooth surfaces. The same trend was not observed for specimens with as-built surface roughness because globularization did not occur at dominant fatigue crack initiation sites; the roots of deep surface crevices.Citation
International Journal of Fatigue
Pub Type
Journals
Download Paper
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created February 26, 2022, Updated November 29, 2022