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Atomic-scale investigation of hydrogen distribution in a Ti-Mo alloy
- Publication Year :
- 2018
-
Abstract
- Ingress of hydrogen is often linked to catastrophic failure of Ti-alloys. Here, we quantify the hydrogen distribution in fully \b{eta} and {\alpha}+\b{eta} Ti-Mo alloys by using atom probe tomography. Hydrogen does not segregate at grain boundaries in the fully \b{eta} sample but segregates at some {\alpha}/\b{eta} phase boundaries with a composition exceeding 20 at.% in the {\alpha}+\b{eta} sample. No stable hydrides were observed in either sample. The hydrogen concentration in \b{eta} phases linearly decreases from ~13 at. % to ~4 at. % with increasing Mo-content, which is ascribed to the suppression of hydrogen uptake by Mo addition.
- Subjects :
- Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1812.00981
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.scriptamat.2018.11.040