单晶高温合金蠕变行为研究现状  

Present Situation of Study on Creep Behavior of Single Crystal Superalloys

作　　者：王开国[1] 李嘉荣[1] 曹春晓[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2004年第1期3-7,11,共6页Journal of Materials Engineering

摘　　要：综述了国内外单晶高温合金蠕变行为研究现状,分析了蠕变行为中γ′相定向粗化机理、蠕变各向异性和蠕变过程中位错演化问题,探讨了单晶高温合金蠕变行为的研究方向。The present situation of research on creep behavior of the single crystal superalloys was reviewed. The mechanism of directional coarsening of γ, the creep anisotropy and the dislocation evolution during creep were analyzed and the study direction of creep behavior of the single crystal superalloys was approached.

关 键 词：单晶高温合金 蠕变行为 定向粗化 各向异性 

分 类 号：TG146.15[一般工业技术—材料科学与工程] TG113.255[金属学及工艺—金属材料]