Threshold stress and load transfer effect in creep of an Al-8.5Fe-1.3V-1.7Si alloy reinforced with silicon carbide particulates.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F03%3A07033038" target="_blank" >RIV/68081723:_____/03:07033038 - 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
Threshold stress and load transfer effect in creep of an Al-8.5Fe-1.3V-1.7Si alloy reinforced with silicon carbide particulates.
Original language description
The creep behaviour of an Al-8.5Fe-1.3V-1.7Si-15SiCp composite in two temperature intervals, namely 623 to 723 K and 773 to 823 K is investigated using the isothermal constant stress creep test technique. The measured minimum creep strain rates cover sixto seven orders of magnitude. Occasionally, this creep behaviour is compared with that of an unreinforced (matrix) Al-8.5Fe-1.3V-1.7Si (8009Al type) alloy. For the temperature interval 623 to 723 K the true threshold creep behaviour is characteristic. The true threshold stress decreases with increasing temperature more strongly than the shear modulus and is higher in the composite than in the matrix alloy. With the strong temperature dependence of the true threshold stress, extremely high values of theapparent activation energy and the apparent stress exponent are associated. However, the minimum creep strain rate is matrix lattice diffusion controlled and depends on the fifth power of the effective stress ( is the applied stress). Th
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Project
<a href="/en/project/IBS2041001" target="_blank" >IBS2041001: Degradation of properties and lifetime assessment of engineering materials under mechanical loading</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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