ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Semi-solid forming offers new potentials for processing of high reactive and hot cracksusceptible aluminium-lithium wrought alloys. With the tailored alloy AA1420* (AlLi2.1Mg5.5+Sc+Zr) a promising material for thixoforming with achievable high strength of up to 500MPatensile strength and over 400MPa yield strength concomitant with its low density of 2,46g/cm3 isachievable. Due to high solid fractions the effect of solidification shrinkage could be sufficientlydecreased with the result of hot-tear-free casting.Simulation supported a critical to cast automotive tie rod was exemplarily manufactured via semisolid-technology with promising results.Furthermore with an improved and advanced heat treatment enhanced mechanical properties,comparable to those of rolled AA1420, were achieved
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.141-143.145.pdf