Creep behaviour and superplasticity in UFG Ti-6Al-4V alloy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450341" target="_blank" >RIV/68081723:_____/15:00450341 - 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
Creep behaviour and superplasticity in UFG Ti-6Al-4V alloy
Original language description
In this paper, the creep behaviour of a Ti-6Al-4V alloy processed by multiaxial forging was investigated. The originally as-received coarse ?grained titanium alloy was processed by multiaxial forging in the temperature range from 973 to 748 K. The initial strain rate was 10-3 s-1 strain per deformation step was about 0.5. Ultrafine-grained Ti alloy with mean grain size d150 nm was tested at 648-873 K at constant stress in compression and under constant load in tension. The values of the stress exponentof the minimum creep rate n and creep activation energy Qc were determined. The microstructure of specimens after creep testing was examined by FIB/SEM Tescan Lyra 3 equipped with NordlysNano EBSD detector operating at an accelerating voltage of 20 kV with specimen tilted at 70°. The EBSD analyses of both gauge length and head of specimens were performed in the longitudinal sections parallel to the stress direction. The results of the uniaxial creep tests showed different values of the s
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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