Commercial AM60 alloy for semisolid processing:Alloy optimization and thermodynamic analysis  

作　　者：李元东 D.APELIAN 邢博 马颖 郝远 

机构地区：[1]Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou University of Technology [2]Key Laboratory of Nonferrous Metal Alloys and Processing,Ministry of Education,Lanzhou University of Technology [3]Advanced Casting Research Center (ACRC),Metal Processing Institute (MPI)

出　　处：《Transactions of Nonferrous Metals Society of China》2010年第9期1572-1578,共7页中国有色金属学报（英文版）

基　　金：Project(50964010) supported by the National Natural Science Foundation of China;Project(090WCGA894) supported by the International S&T Cooperation Program of Gansu Province,China

摘　　要：Semisolid processing is now a commercially successful manufacturing route to produce net-shape parts in automotive industry. The conspicuous results of alloy optimization with thermodynamic simulations for semisolid processing of commercial AM60 alloy were present. The results indicate that the available processing temperature range of AM60 alloy is 170 ℃. The temperature sensitivity of solid fraction decreases with increasing solid fraction or with decreasing temperature above eutectic reaction temperature of AM60 alloy. When the solid fraction φs is 0.4, corresponding processing temperature is 603.8 ℃ and the sensitivity -dφs/dT is 0.0184. The effects of various alloying elements on the solidification behavior and SSM processability of AM60 alloy were calculated with Pandat software.Semisolid processing is now a commercially successful manufacturing route to produce net-shape parts in automotive industry.The conspicuous results of alloy optimization with thermodynamic simulations for semisolid processing of commercial AM60 alloy were present.The results indicate that the available processing temperature range of AM60 alloy is 170 °C.The temperature sensitivity of solid fraction decreases with increasing solid fraction or with decreasing temperature above eutectic reaction temperature of AM60 alloy.When the solid fraction φs is 0.4, corresponding processing temperature is 603.8 °C and the sensitivity -dφs/dT is 0.0184.The effects of various alloying elements on the solidification behavior and SSM processability of AM60 alloy were calculated with Pandat software.

关 键 词：AM60 alloy semisolid processing alloy optimization thermodynamic analysis solid fraction 

分 类 号：TG292[金属学及工艺—铸造]