Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scale
| Autor: | Philipp Kürnsteiner, Dierk Raabe, Michael P. Moody, Leigh T. Stephenson, Anna Radecka, Zahra Tarzimoghadam, H. M. Gardner, Abigail K. Ackerman, Paul A. J. Bagot, Baptiste Gault, Wenjun Lu, Yanhong Chang, Michael Herbig, Tong Li, Dirk Ponge, Andrew J. Breen, Eric Aimé Jägle, David Rugg, David Dye |
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| Přispěvatelé: | Engineering & Physical Science Research Council (EPSRC), Rolls-Royce Plc, Rolls-Royce Deutschland Ltd & CoKG |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Polymers and Plastics Hydrogen chemistry.chemical_element FOS: Physical sciences 02 engineering and technology Atom probe 01 natural sciences Atomic units law.invention Condensed Matter::Materials Science law 0103 physical sciences Physics::Atomic and Molecular Clusters Physics::Chemical Physics 0912 Materials Engineering Materials 010302 applied physics Condensed Matter - Materials Science Hydride Metals and Alloys Titanium alloy Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Microstructure Electronic Optical and Magnetic Materials chemistry Ceramics and Composites Physical chemistry Grain boundary 0210 nano-technology Titanium 0913 Mechanical Engineering |
| DOI: | 10.1016/j.actamat.2018.02.064 |
| Popis: | Ti has a high affinity for hydrogen and is a typical hydride formers. Ti-hydride are brittle phases which probably cause premature failure of Ti-alloys. Here, we used atom probe tomography and electron microscopy to investigate the hydrogen distribution in a set of specimens of commercially pure Ti, model and commercial Ti-alloys. Although likely partly introduced during specimen preparation with the focused-ion beam, we show formation of Ti-hydrides along {\alpha} grain boundaries and {\alpha}/\b{eta} phase boundaries in commercial pure Ti and {\alpha}+\b{eta} binary model alloys. No hydrides are observed in the {\alpha} phase in alloys with Al addition or quenched-in Mo supersaturation. Comment: Published in Acta Materialia in 2018 |
| Databáze: | OpenAIRE |
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