Composition of omega-Phase Particles in Ti(Mo) Alloys Studied by Anomalous X-ray Diffraction
Authors | |
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Year of publication | 2019 |
Type | Article in Periodical |
Magazine / Source | CRYSTALS |
MU Faculty or unit | |
Citation | SMILAUEROVA, J., P. HARCUBA, M. JANECEK and Václav HOLÝ. Composition of omega-Phase Particles in Ti(Mo) Alloys Studied by Anomalous X-ray Diffraction. CRYSTALS. BASEL: MDPI, 2019, vol. 9, No 9, p. 1-11. ISSN 2073-4352. Available from: https://dx.doi.org/10.3390/cryst9090440. |
web | https://www.mdpi.com/2073-4352/9/9/440 |
Doi | http://dx.doi.org/10.3390/cryst9090440 |
Keywords | Ti alloys; omega nanoparticles; anomalous X-ray diffraction |
Description | Nanoparticles of hexagonal omega phase in bcc-Ti(Mo) single crystals (beta phase) occur due to a diffusionless athermal beta to omega transformation and they grow during follow-up ageing at elevated temperatures, while the alloying atoms (Mo in our case) are expelled from the nanoparticle volumes. We investigated the Mo content in growing omega nanoparticles by anomalous X-ray diffraction and demonstrate that the Mo expulsion from the omega phase is not full; a thin shell of a nanoparticles where the beta to omega transformation is not complete still contains a considerable amount of Mo atoms. |