FATIGUE CRACKING MECHANISMS OF TITANIUM ALLOY VT3-1 IN VERY-HIGH-CYCLE-FATIGUE REGIME
Investigations and tests of specimens of VT3-1 titanium alloy were done in Very-High-Cycle-Fatigue regime. Specimens were manufactured from compressor disks of D30-KU engine, and tests under frequency 20 kHz performed on the special test-bed in laboratory of Paris University «ITMA». Crack originatio...
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| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | ruso |
| Publicado: |
Moscow State Technical University of Civil Aviation
2016-11-01
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| Colección: | Научный вестник МГТУ ГА |
| Materias: | |
| Acceso en línea: | https://avia.mstuca.ru/jour/article/view/319 |
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| Sumario: | Investigations and tests of specimens of VT3-1 titanium alloy were done in Very-High-Cycle-Fatigue regime. Specimens were manufactured from compressor disks of D30-KU engine, and tests under frequency 20 kHz performed on the special test-bed in laboratory of Paris University «ITMA». Crack origination takes place subsurface from different material structural inhomogeneities. Fatigue origin has fine-granular area in the case of specimen tests under symmetrical cycle of cyclic loads but in the case of cyclic tension, origin has flat facet because of a-phase splitting. Experimental data dispersion under the constant stress level covered three orders. |
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| ISSN: | 2079-0619 2542-0119 |