On the Microstructure and Impact Properties of Slow Injection A356 Die Castings with Local Pressurization
Microstructure and impact properties of slow injection A356 die castings with local pressurization have been investigated. The microstructure in the casting different regions were analyzed and compared. The casting impact absorbed energy varies from 1.17 to 2.35J, and is higher than that of other pressure die casting process. Furthermore, fracture mechanisms of different regions in castings are discussed. The results show that, the impact absorbed energy decreases with increase in SDAS. Also significant fluctuations of the impact properties in the thick-walled and local pressurization regions are found.
Dongming Guo, Jun Wang, Zhenyuan Jia, Renke Kang, Hang Gao, and Xuyue Wang
Y. F. Bai et al., "On the Microstructure and Impact Properties of Slow Injection A356 Die Castings with Local Pressurization", Materials Science Forum, Vols. 628-629, pp. 587-592, 2009