Effects on the as-Cast Structure of 7075 Aluminum Alloy by Treating with Electrical Pulse Inoculation

Abstract:

This paper investigates the influence of electrical pulses inoculation and Al-5Ti-B on the as-cast structure of 7075 aluminum alloy. The experimental results indicate that the number of the secondary branch crystal of the solidification structure is effectively controlled, and the feature of as-cast structure achieve the equiaxial and spherical grains after the liquid 7075 Al-alloy was treated by electrical impulse inoculation and Al-5Ti-B. Compared with these samples treating without electrical impulse inoculation, the segregation of Cu and Fe is restrained to a certain extent too. Some primary refinement mechanisms analyze those effects on the solidification structure by treating with electric pulse and Al-5Ti-B; this experiment may provide a theoretical reference for the application of electric impulse in 7075 aluminum alloy.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 954-958
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.954
• Online since: June 2012
• Authors: Zhong Yuan Sun, Yu Liang, Ling Feng Yu, Zhi Yi Shi
• Keywords: 7075 Aluminum Alloy, As-Cast Structure, Electrical Pulses Inoculation, Microsegregation

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