Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 116-117 (Oct. 2006), p. 513-517
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
This investigation describes the development and evaluation of thixoformable alloys onAl-Li-Mg basis in the scope of the collaborative research center SFB 289 at RWTH AachenUniversity. Scandium and zirconium was added to Al-Li2.1-Mg5.5 (A1420) with the aid of DoE(Design of Experiments) and precursor billets were manufactured by pressure induction melting(PIM). To evaluate the thixoformability of the synthesized alloys high-quality semi solid processeddemonstrators were manufactured by the Rheo-Container-Process. Subsequent heat treatment raisedthe mechanical properties to maximum values of tensile strength of 432MPa, yield strength of220MPa and an elongation of 13%. The RCP-Process was designed for the special requirements ofthis high reactive alloy. The paper will present extraordinary benefits in terms of properties andprocess simpleness for the semi-solid processing of Al-Li alloys
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.116-117.513.pdf
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