2009
DOI: 10.1016/j.actamat.2009.04.034
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Evolution of nanoscale precipitates in Al microalloyed with Sc and Er

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Cited by 118 publications
(29 citation statements)
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“…where, k is a coarsening rate constant related to the temperature and the composition of the material [67][68][69], and n is the inverse time exponent [70]. Usually, T o " is much smaller than 7", and is therefore neglected [71].…”
Section: Precipitate Coarsening Theorymentioning
confidence: 99%
“…where, k is a coarsening rate constant related to the temperature and the composition of the material [67][68][69], and n is the inverse time exponent [70]. Usually, T o " is much smaller than 7", and is therefore neglected [71].…”
Section: Precipitate Coarsening Theorymentioning
confidence: 99%
“…Erbium form thermodynamically stable L1 2 -ordered Al 3 Er precipitates during ageing heat treatment [12]. These precipitates can improve the creep resistance in coarse-grained Al-based alloys [13].…”
Section: Introductionmentioning
confidence: 99%
“…Currently, Al-Er master alloys are prepared by direct alloying aluminium with erbium, respectively [6,8,9,12]. In its pure form, Er has a high melting point, which leads to losses of the alloying element and the base during melting and significant contaminate of master alloys by non-metallic impurities.…”
Section: Introductionmentioning
confidence: 99%
“…13) However, the Al 3 Zr precipitates are often heterogeneously distributed within each grain due to variations in the local Zr concentration resulting from segregation during casting, and the alloys will consequently subject to the recrystallization in the regions where the precipitation density is low. 4) Prolonged heat treatment easily makes the metastable Al 3 Zr phase transform to the equilibrium DO 23 Al 3 Zr phase which is semi-coherent with Al matrix.…”
Section: Introductionmentioning
confidence: 99%