influence of creep; microstructure; ZA alloys; pressure; LiMaRC - Liège Materials Research Center
Abstract :
[en] This paper is a continuation of a microstructural study of ZA alloys subjected to ageing at different temperatures with subsequent creep at 20 and 120 °C. it was already established that the samples aged for one week at 100 and 250 °C show the slowest creep rate. Furthermore, the resuits obtained afler ageing at 250 °C are better than those obtained after ageing at 100 °C. In order to explain more correctly these resuits, the microstructure is studied after ageing at 250 oc and subsequent creep at room temperature under pressure at 100 MPa and at 120 °c under pressure at 40 MPa, on test samples broken after the respective creep. [fr] Ce travail est suite d’une étude micro-structurale réalisée après fluage à 20 et 120 °C sur des alliages ZA vieillis a différentes températures. Il a déjà été établi que les échantillons vieillis une semaine a 100 et 250 oc possèdent la vitesse de fluage la plus faible. De plus, les résultats obtenus après vieillissement à 250 oc sont meilleurs que ceux obtenues après vieillissement à 100 °c. Pour expliquer ces résultats, la microstructure des alliages vieillis a 250 c et ayant subi des tests de fluage a température ambiante sous 100 MPa et à température de 120 °c sous 40 MPa a été examinée sur des échantillons après rupture.
Disciplines :
Chemical engineering Physics Materials science & engineering
Author, co-author :
Terziev, L.
Lecomte-Beckers, Jacqueline ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Wegria, J.
Language :
English
Title :
Influence of creep on the microstructure of Zn-Al-Cu alloys aged at 250°C
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Lecomte‐beckers J., Terziev L., Wegria J. Advances in Science, Technology and Application of Zn—Al Alloys , G. Terres‐villasenor, Universidad National Autonoma de Mexico; 1994, 101-108.
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