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BDG Informationszentrum<br />
Gießtechnik, Erstarrung<br />
Dokumenten-Nummer: 57762<br />
Zeitschriftenaufsatz<br />
Auf<strong>der</strong>heide, R. u.a.<br />
Publikationssprache: Englisch<br />
Un<strong>der</strong>standing contamination from feeding aids in cast steel<br />
Verstehen <strong>der</strong> Verunreinigung von Stahlguss durch Speiserhilfsstoffe<br />
Riser sleeves and hot-toppings can improve the overall quality and cost of steel castings, but they may impact the<br />
chemistry of the metal.Tests quantified the amounts of contamination from different types and formulations of feeding<br />
aids, and the results demonstrate that exothermic materials remain valuable for controling shrinkage.<br />
ASK Chemicals, US<br />
Foundry Management & Technology<br />
Erscheinungsjahr 2012<br />
Heftnummer 8<br />
S. 6-8,10-11 (5 Seiten, 1 Bil<strong>der</strong>, 5 Tabellen, 10 Quellen)<br />
Gießtechnik, Erstarrung<br />
Dokumenten-Nummer: 57787<br />
02 Publikationssprache: Englisch<br />
Birol, Y.<br />
Effect of solute Si and Cu on grain size of aluminium alloys<br />
Einfluss von gelöstem Silicium und Kupfer auf die Korngröße von Aluminiumlegierungen<br />
The relationship between grain size and growth restriction factor (GRF) and solidification interval at hypoeutectic solute<br />
concentrations was investigated in Al-Si and Al-Cu binary alloys. Si and Cu both provide a grain refining effect for<br />
aluminium alloys that starts to deteriorate at approximately 3 wt-%Si and 5.7 wt-%Cu in Al-Si and Al-Cu binary alloys<br />
respectively. The GRF, which increases monotonically with increasing solute content until the eutectic point, cannot be<br />
correlated to grain size at high solute concentrations. The solidification interval, on the other hand, is inversely related<br />
with the measured grain size, producing a nearly perfect correlation for the entire range of hypoeutectic solute<br />
concentrations. The grain size decreases as long as the solidification interval increases and vice versa. The solidification<br />
interval impacts both the nucleation as well as the growth of alpha (Al) grains. A growing solidification interval facilitates<br />
increasing nucleation and growth restriction, favouring small grains.<br />
Materials Institute, TÜBITAK-Marmara Research Center (MRC), Gebze-Kocaeli, TR<br />
International Journal of Cast Metals Research<br />
Erscheinungsjahr 2013<br />
Heftnummer 1<br />
S. S.22-27 (6 Seiten, 6 Bil<strong>der</strong>, 1 Tabellen, 44 Quellen)<br />
<strong>Giesserei</strong> <strong>Literaturschau</strong>
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