Herzing, A.
, Kolli, R.
and Ankem, S.
(2016),
Characterization of Yttrium-Rich Precipitate Phases in a Titanium Alloy Weld, Materials Characterization, [online], https://doi.org/10.1016/j.matchar.2016.10.014, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919697
(Accessed December 5, 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.
Characterization of Yttrium-Rich Precipitate Phases in a Titanium Alloy Weld
Published
Author(s)
, Ratna P. Kolli, Sreeramamurthy Ankem
Abstract
The yttrium-rich (Y-rich) precipitates that form in the fusion zone (FZ) of a Ti-5111 alloy weld were characterized by atom probe tomography and scanning transmission electron microscopy. Two distinct types of precipitates were identified: (1) a higher number density of a nanoscale YAl2 phase, and (2) a lower apparent number density of a larger Y-rich phase that is possibly Y2O3 or Y2O2S. Both types of precipitates can contribute to the reduced hardening and improved ductility of the FZ.Citation
Materials Characterization
Pub Type
Journals
Download Paper
Keywords
Titanium alloys, welding, yttrium, atom probe tomography, high-angle annular dark field, STEM, X-ray energy dispersive spectroscopy, XEDS
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created December 1, 2016, Updated September 29, 2025