ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this work effect of cooling rate on the size of the grains, SDAS, β phases and thermalcharacteristic results of Al-Si cast alloys have been described. The solidification process wasstudied using the cooling and crystallization curve at cooling rate ranging from 0,1 ºCs-1 up to1 ºCs-1. The main observation made from this work was that when cooling rate is increased thealuminum dendrites nucleation temperature and solid fraction at the dendrite coherency pointincreases, which implies that mass feeding is extended. In addition to that, it was observed thatsolidus temperature and size of the β phases decreases when cooling rate increases. Investigationswere showed, that the thermal modification could be quantitatively assessed by analysis of thecrystallization curve
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.15-17.59.pdf