Microstructure behavior and metal flow during continuously extending-extrusion forming of semisolid A2017 alloy  

作　　者：管仁国 温景林 王顺成 刘相华 

机构地区：[1]School of Materials and Metallurgy, Northe astern University Shenyang 110004, China

出　　处：《中国有色金属学会会刊：英文版》2006年第2期382-386,共5页Transactions of Nonferrous Metals Society of China

基　　金：Project(50274020) supported by the National Natural Science Foundation of China; Project(20041006) supported by the Natural Science Foundation of Liaoning Province; Project(2000062708-4) supported by the National Basic Research Program of China

摘　　要：A self-designed test machine of continuously semisolid extending extrusion was made to produce the flat bar of A2017 alloy. The slurry of A2017 alloy with spherical or elliptical structures was obtained. During manufacturing semisolid A2017 alloy by the proposed process, the spherical grain was formed with the application of the large force provided by the rough roll. By controlling the casting temperature, the products of A2017 alloy with fine surfaces and rectangular transections of 14 mm×25 mm were produced. The microstructure of the product is fine with the stripped appearance. The fracture strength and elongation of the product are increased by 100 MPa and 29%, respectively.A self-designed test machine of continuously semisolid extending extrusion was made to produce the flat bar of A2017 alloy. The slurry of A2017 alloy with spherical or elliptical structures was obtained. During manufacturing semisolid A2017 alloy by the proposed process, the spherical grain was formed with the application of the large force provided by the rough roll. By controlling the casting temperature, the products of A2017 alloy with fine surfaces and rectangular transections of 14 mm×25 mm were produced. The microstructure of the product is fine with the stripped appearance. The fracture strength and elongation of the product are increased by 100 MPa and 29%, respectively.

关 键 词：半固态合金 铝合金 显微结构 金属流动 铸造 

分 类 号：TG113[金属学及工艺—物理冶金]