South Korea Successfully Develops New Aluminum Alloys Using Traditional Foundry Technology

According to the latest news from South Korea, Dr. Han Shengquan from Korea Materials Research Institute, An Zhihe, the chief researcher, and Lin Chenghuan from Professor Jiangyuan University, and Puxian Xiong from graduate school, a team composed of professor Huang Nongwen of Seoul National University (transliteration of the above names) manufactured using traditional casting techniques. Aluminum alloy with both high strength and ductility. The research team also received strong support from the Korea Future Materials Research Group and the Mechatronics Fusion Fitting Materials Research Center. The developed aluminum alloy has a strength of 400 MPa and a high ductility of 8% or more.

Foundry aluminum alloys are used in the automotive and aerospace industries because of their high strength thanks to a simple heat treatment process. However, aluminum alloys for casting use more alloying elements than aluminum alloys for machining. Although a certain strength is ensured after casting, the ductility is only about 3%, which is not suitable for high ductility and high elongation. Tough fittings.

For aluminum alloys for casting, higher ductility has an extremely important effect on the quality of cast products, especially products with high strength and high ductility, and its reliability is higher, but in fact, almost all The alloys are difficult to have both properties. It is reported that the aluminum alloy developed this time adds cheap copper elements, improves the size and distribution of the precipitated phases, and adopts the existing aluminum alloy production process, which has certain cost advantages and is expected to realize commercial production in a relatively short period of time. The results of this research were published in Nature Report Group's world-famous academic journal Scientific Reports, which indicates that the research team's achievements have gained international recognition. (Luo Qi)