Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment
Elastic constants of single crystals of metastable β-phase of the Ti-15Mo alloy were studied by ultrasonic methods with the aim to observe the dependence of these constants on formation of isothermal ω particles. Two ultrasonic methods were applied: resonant ultrasound spectroscopy for monitoring th...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2020-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12012.pdf |
| _version_ | 1818355207796424704 |
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| author | Janovskaa M. Nejezchlebova J. Sedlak P. Grabec T. Stoklasova P. Smilauerova J. Janecek M. Kratky S. Seiner H. |
| author_facet | Janovskaa M. Nejezchlebova J. Sedlak P. Grabec T. Stoklasova P. Smilauerova J. Janecek M. Kratky S. Seiner H. |
| author_sort | Janovskaa M. |
| collection | DOAJ |
| description | Elastic constants of single crystals of metastable β-phase of the Ti-15Mo alloy were studied by ultrasonic methods with the aim to observe the dependence of these constants on formation of isothermal ω particles. Two ultrasonic methods were applied: resonant ultrasound spectroscopy for monitoring the temperature evolution of the elastic constants, and transient grating spectroscopy for identification of the local material symmetry at a fixed temperature. Samples with different heat treatments (isothermal ageing at 300 °C and ageing under the same temperature with uniaxial [111] loading) were studied. The results prove that the isothermal omega particles always exactly follow the original cubic symmetry of the β matrix, and that the evolutions of the elastic constants of the β-ω multi-phase crystals can be reliably approximated using Hill’s homogenizing procedure, assuming cubic elastic constants of the β-phase and isotropic elastic constants representing the ω particles. |
| first_indexed | 2024-12-13T19:37:39Z |
| format | Article |
| id | doaj.art-31e7c360efd14334b9f272850b22cf1a |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T19:37:39Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-31e7c360efd14334b9f272850b22cf1a2022-12-21T23:33:46ZengEDP SciencesMATEC Web of Conferences2261-236X2020-01-013211201210.1051/matecconf/202032112012matecconf_ti2019_12012Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatmentJanovskaa M.0Nejezchlebova J.1Sedlak P.2Grabec T.3Stoklasova P.4Smilauerova J.5Janecek M.6Kratky S.7Seiner H.8Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Faculty of Mathematics and Physics, Department of Physics of Materials, Charles UniversityFaculty of Mathematics and Physics, Department of Physics of Materials, Charles UniversityInstitute of Scientific Instruments, Academy of Sciences of the Czech RepublicInstitute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejškova 5Elastic constants of single crystals of metastable β-phase of the Ti-15Mo alloy were studied by ultrasonic methods with the aim to observe the dependence of these constants on formation of isothermal ω particles. Two ultrasonic methods were applied: resonant ultrasound spectroscopy for monitoring the temperature evolution of the elastic constants, and transient grating spectroscopy for identification of the local material symmetry at a fixed temperature. Samples with different heat treatments (isothermal ageing at 300 °C and ageing under the same temperature with uniaxial [111] loading) were studied. The results prove that the isothermal omega particles always exactly follow the original cubic symmetry of the β matrix, and that the evolutions of the elastic constants of the β-ω multi-phase crystals can be reliably approximated using Hill’s homogenizing procedure, assuming cubic elastic constants of the β-phase and isotropic elastic constants representing the ω particles.https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12012.pdf |
| spellingShingle | Janovskaa M. Nejezchlebova J. Sedlak P. Grabec T. Stoklasova P. Smilauerova J. Janecek M. Kratky S. Seiner H. Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment MATEC Web of Conferences |
| title | Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment |
| title_full | Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment |
| title_fullStr | Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment |
| title_full_unstemmed | Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment |
| title_short | Elastic constants of Ti-15Mo single crystals and their evolution with thermal treatment |
| title_sort | elastic constants of ti 15mo single crystals and their evolution with thermal treatment |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2020/17/matecconf_ti2019_12012.pdf |
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