Titanium is thanks to its high corrosion resistance and biocompatibility widely used in medicine. Ti alloys are used due to their superior mechanical properties instead of pure Ti for load carrying components. Ti alloys are often alloyed with elements which are toxic for human body and further increase cost of Ti products. Main focus of current development is to create pure Ti with better mechanical properties. It can be done by reducing grain size by processes based on severe plastic deformation. The aim of this work is to evaluate fatigue properties as well as fatigue crack initiation and propagation mechanism of Ti grade 2 with the ultrafine grained structure. After microstructure analysis, fatigue tests with symmetrical loading were executed. Fracture surfaces of ultrafine grained Ti grade 2 were observed after fatigue tests for identification of failure mechanism. Results were compared with those for course-grained Ti grade 2.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:400500 |
| Date | January 2019 |
| Creators | Dobeš, Ondřej |
| Contributors | Pantělejev, Libor, Fintová, Stanislava |
| Publisher | Vysoké učení technické v Brně. Fakulta strojního inženýrství |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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