镍基单晶合金的高温蠕变行为研究  

Study on high-temperature creep behavior of nickel-base single crystal supper alloy

作　　者：赵博[1] 刘刚[2] 韩先洪[3] 

机构地区：[1]海军驻上海704所军代表室,上海200031 [2]中国船舶重工集团公司第七0四研究所,上海200031 [3]上海交通大学塑性成形技术与装备研究院,上海200030

出　　处：《模具技术》2017年第2期6-9,15,共5页Die and Mould Technology

摘　　要：航空发动机、燃汽轮机等高温部件长期工作在高温、高压等严酷环境下,蠕变和疲劳成为制约其使用寿命的重要因素之一,近年来日益受到广泛关注。从镍基单晶合金的高温蠕变现象出发,结合高温蠕变行为中的定向粗化、蠕变各向异性、位错演化、损伤力学模型等问题,介绍了国内外单晶高温合金蠕变行为的研究现状及发展趋势。The key components of aircraft engines and gas turbines work chronically in harsh environment of high-temperature and high pressure,their service life is highly depended on the creep and fatigue behavior of the materials,which has attracted considerable attentions in recent years.In this paper,the status and prospects of research on high-temperature creep behavior of nickel-base single crystal supper alloy are presented,and some typical topics of supper alloy are discussed,which contains the directional coarsening phenomenon,the creep anisotropy phenomenon,the evolution of dislocation,and the damage mechanics models etc.

关 键 词：镍基单晶高温合金 高温蠕变 研究 

分 类 号：TG132.3[一般工业技术—材料科学与工程]