HEAT TREATMENT AND MECHANICAL PROPERTIES OF TiAl ALLOY WITH HIGH Nb CONTENT

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F09%3APU110110" target="_blank" >RIV/00216305:26210/09:PU110110 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
HEAT TREATMENT AND MECHANICAL PROPERTIES OF TiAl ALLOY WITH HIGH Nb CONTENT
Original language description
The influence of the fully lamellar morphology produced by heat treatment on the room temperature mechanical properties of near gamma-Ti-44Al-8Nb intermetallic was investigated. Particularly, the effect of improved microstructural control on compressionresistance is demonstrated using the step cooling from the alfa single phase, including combination of furnace cooling and air cooling. The differential thermal analysis was used to determine the phase transformation temperatures as the alfa transus andthe eutectic temperature. The heat treatment used, consisting in different cooling from alfa region, remould the as-cast nearly lamellar structure to the fully lamellar uniform structure and decreased the average grain size to the half. The furnace cooling from the alfa region to 1 315 C and the following air cooling result in higher yield stress and lower plasticity due the very thin lamellar thickness and planar grain boundary. While higher plasticity and lower yield stress are obtaine
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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