ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
It is significative to link the semi-solid process and continuous roll-casting process (CRP),through which we can get high quality magnesium alloy strips with non-dendritic structure andimprove the overall properties of the products. Furthermore, because CRP of semi-solid metalcombines casting and forming, it shortens the period of technological process. In general, severaltechnical parameters such as the inlet temperature of semi-solid slurry, the heat transfer betweenroll and molten alloy, the roll-casting speed, the position of solidification final point influence onthe strip quality in continuous roll-casting process. Therefore, the effects of the parameter tocontinuous roll-casting process should be investigated. In this paper, the finite volume method isused in the analysis of the CRP, a two-dimensional incompressible non-Newtonian flow with heattransfer is considered. Based on the simulated results, the optimizational technical parameters areobtained and the experiment of CRP was carried out. An ideal AZ91D strip with non-dendriticstructure has been obtained and also has been tested by cold rolling and hot rolling. The resultsshow that microstructure and mechanical properties of the strip are fine
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.116-117.583.pdf
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