SCR技术制备A2017半固态材料及其触变性能的研究  

Manufacturing A2017 semisolid materials by SCR Process and thixoforming property research

作　　者：管仁国[1] 温景林[1] 刘相华[1] 孟宪云[1] 

机构地区：[1]东北大学材料与冶金学院,317信箱辽宁沈阳110004

出　　处：《航空材料学报》2002年第1期31-35,共5页Journal of Aeronautical Materials

基　　金：国家重点基础研究发展规划"973"项目(G2 0 0 0 0 6 72 0 8 4 )

摘　　要：单辊搅拌技术 (SCRShearing/CoolingRollProcess)技术制备的A2 0 17半固态材料比常规铸造坯组织优良 ;SCR技术制备的A2 0 17半固态材料在 5 30～ 5 70℃范围内 ,可以进行触变成形 ;半固态成形平均屈服强度比热加工时的屈服强度低 10MPa ;A2 0 17半固态材料触变过程分为四个阶段 ,稳定触变阶段A2 0 17半固态材料的触变性能稳定 ,半固态加工时容许的最大加工变形范围为 6 4 %～ 72 %。Material manufactured by SCR process excelled conventional casting slab in microstrueture; Under the temperature range from 530°C to 570 °C, A2017 material manufactured by SCR process could be thixoformed. Yeild strength in semisolid forming process was much smaller than in hot forming process; Thixoforming process of A2017 material was divided into four steps, in static thixoforming step A2017 semisolid material forming property was fine, Semisolid formation should be carried out within proper deformation rate from 64 % to 72 %.

关 键 词：SCR技术 制备 A2017半固态材料 触变性能 单辊搅拌技术 合金材料 铸造工艺 金属流变学 

分 类 号：TG111.4[金属学及工艺—物理冶金] TG24[金属学及工艺—金属学]