摘要
具有优异的高温抗蠕变、抗疲劳、抗氧化和耐热腐蚀等综合性能的先进镍基单晶高温合金,是当代先进航空发动机热端部件的首选材料。研究者发现,Ru元素的引入对镍基单晶高温合金的组织稳定性和高温蠕变性能有重大影响。但是相关研究开始较晚,不够充分,因此Ru元素具体作用机制尚不明晰。此外,Ru的添加提高了镍基单晶高温合金的制造成本,所以高代次单晶合金目前仍处于试验阶段,并未在实际生产中实现大规模应用。本文从Ru元素对镍基单晶高温合金铸态组织、热处理态组织、组织结构稳定性和蠕变性能的影响4个方面出发,总结了Ru元素在单晶高温合金中具体作用的研究进展。
Advanced nickel-based single crystal superalloys with excellent creep resistance,fatigue resistance,oxidation resistance and heat resistance are the preferred materials for the hot end components of modern advanced aero-engines.Ru has a significant effect on the microstructural stability and high-temperature creep properties of nickel-based single crystal superalloys.However,relevant studies started late and were not sufficient,so the specific mechanism of Ru is still unclear.In addition,Ru addition increases the manufacturing cost of nickel-based single crystal superalloys,so high-generation single crystal alloys are still in the experimental stage at present,and have not been applied in practical production on a large scale.Based on the effects of Ru on the as-cast microstructure,heat treatment microstructure,structural stability and creep properties of nickel-based single crystal superalloys,this paper summarizes the research progress of the effect of Ru element in single crystal superalloys.
作者
叶新玥
赵云松
张迈
卢广先
李远
张剑
骆宇时
王恩会
侯新梅
YE Xinyue;ZHAO Yunsong;ZHANG Mai;LU Guangxian;LI Yuan;ZHANG Jian;LUO Yushi;WANG Enhui;HOU Xinmei(Carbon Neutrality Innovation Research Institute,University of Science and Technology Beijing,Beijing 100083,China;Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Beijing 100095,China)
出处
《铸造技术》
CAS
2023年第2期114-121,共8页
Foundry Technology
基金
国家重点研发计划青年科学家项目(2022YFB3708100)。
关键词
单晶高温合金
Ru元素
组织
性能
single crystal superalloy
Ru
microstructure
performance
