Structure and properties of cast Ti-Al-Si alloys
| Autor: | Ivo Szurman, Tomáš Čegan, Pavel Novák, Jiří Linhart, Kateřina Skotnicová, Jan Juřica, Anna Knaislová |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Silicon Ti-Al based alloys Alloy Intermetallic chemistry.chemical_element engineering.material lcsh:Technology Article Vacuum furnace Centrifugal casting (industrial) Hot isostatic pressing Aluminium General Materials Science intermetallics lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 lcsh:T Metallurgy Casting casting chemistry lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 |
| Zdroj: | Materials Volume 14 Issue 4 Materials, Vol 14, Iss 813, p 813 (2021) |
| Popis: | Intermetallic compounds based on Ti-Al- (Si) are attractive materials with good thermal stability and low density. However, the production of these materials is quite complicated. Partially modified conventional methods of melting metallurgy are most often used due to availability, possible high productivity, and relatively low production costs. Therefore, some technologies for the production of intermetallics based on Ti-Al are currently available, but with certain disadvantages, which are caused by poor casting properties or extreme reactivity of the melt with crucibles. Some shortcomings can be eliminated by modifying the melting technology, which contributes to increasing the cost of the process. The work deals with the preparation of Ti-Al-Si intermetallic compounds with different contents of aluminum and silicon, which were produced by centrifugal casting in an induction vacuum furnace Linn Supercast-Titan. This process could contribute to the commercial use of these alloys in the future. For this research, the TiAl15Si15(in wt.%) alloy was selected, which represents a balanced ratio of aluminides and silicides in its structure, and the TiAl35Si5 alloy, which due to the lower silicon content allows better melting conditions, especially with regard to the melting temperature. This alloy was also investigated after HIP ("Hot Isostatic Pressing") treatment. Web of Science 14 4 art. no. 813 |
| Databáze: | OpenAIRE |
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