Paper Title:
Preparing Semisolid Light Alloys by Vibrating Wavelike Sloping Plate Process and Thixoforming
  Abstract

By using self-made vibrating wavelike sloping plate setup, semisolid billets with fine spherical or rosette grains have be prepared by semi-continuous casting, and the solidified shell on the sloping plate surface can be effectively avoided. Burst nucleation in the whole melt and dendrite fracture causes the formation of fine spherical microstructures. Under the current experimental conditions, proper casting temperature ranges of 660°C~680°C and the amplitude value of under 2mm proper are suggested. When the reheating temperature is 575°C and the holding time is 60min for AZ91D alloy, 597°C and 90min for Al-6Si-2Mg (wt-%) alloy, semisolid forging process can be successfully implemented. Thixo-forming products of two alloys are fine with smooth appearance, good microstructures and properties.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
865-868
DOI
10.4028/www.scientific.net/MSF.561-565.865
Citation
R. G. Guan, Z. H. Xing, L. Shi, C. Wang, Y. Wang, "Preparing Semisolid Light Alloys by Vibrating Wavelike Sloping Plate Process and Thixoforming", Materials Science Forum, Vols. 561-565, pp. 865-868, 2007
Online since
October 2007
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$32.00
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