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http://dx.doi.org/10.3365/KJMM.2012.50.7.531

A Study on Development of High Strength Al-Zn Based Alloy for Die Casting II: Evaluation of Fluidity and Gravity Casting  

Shin, Sang-Soo (Green Technology Center, Korea Institute of Industrial Technology)
Lim, Young-Hoon (AnyCasting Co., Ltd.)
Kim, Eok-Soo (Green Technology Center, Korea Institute of Industrial Technology)
Lim, Kyung-Mook (Green Technology Center, Korea Institute of Industrial Technology)
Publication Information
Korean Journal of Metals and Materials / v.50, no.7, 2012 , pp. 531-538 More about this Journal
Abstract
In this study, we evaluated the fluidity of the Al-Zn based alloys which exhibit excellent mechanical properties. We conducted computer simulations of fluid flow using the results of DSC, DTA analysis and Java-based Materials Properties software (J. Mat. Pro). Such computer simulations were then compared with the results obtained from experimental observations. The computer simulation results and the experimental results were very similar in fluidity length. It was found that the fluidity length of Al-Zn alloys is improved by increasing the Zn content while decreasing the solidus temperature of an alloy. In addition, we elucidate the effect of Zn addition on variations in different mechanical properties and the microstructure characteristics of (Al-xZn3Cu0.4Si0.3Fe) x=20, 30, 40, and 45 wt% alloys fabricated by gravity casting.
Keywords
Al-Zn alloys; fluidity; gravity casting; high strength; FDM;
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