학술논문
A380鋁合金之節能熱處理 / Energy-saving Heat Treatments of A380 Al Alloy
Document Type
Article
Author
蔣易霖 / Y. L. Chiang; 陳正剛 / C. K. Chen; 楊智富 / C. F. Yang; 陳俊沐 / C. M. Chen; 邱垂泓 / C. H. Chiu; 曾發培 / F. P. Tseng; 楊熾照 / C. C. Yang
Source
鑄造工程學刊 / Journal of Taiwan Foundry Society. Vol. 41 Issue 2, p9-15. 7 p.
Subject
Language
繁體中文
ISSN
1011-6761
Abstract
A study on improving the mechanical properties of A380 Al alloys was carried out by a special 2-step energy-saving heat treatment route of the alloys. The related experimental variables of concerns included adjustment in certain alloying elements, the cooling rates (air cool and water quench) and heat treatments (T5). This study utilized a 2-step T5 on selected Al alloys that included A380, A380S (containing Sr) and A380MS1 (containing Mn and Sr and with reduced amounts of Cu and Fe). The results show that, the tensile strengths of water-quenched cast A380, A380S and A380MS1 alloys were found to be increased from the as cast condition of 150, 174 and 184MPa, respectively, to a 2-step aged condition of 177, 231 and 229MPa, respectively. This shows that an increase in tensile strength of 30 to 60MPa (an increase of 20~33%) can be achieved through the 2-step T5 age treatment in these alloys.