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镍基单晶高温合金中Ru元素作用的研究进展
Research Progress on Ru Element in Nickel-based Single Crystal Superalloys
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- DOI:
- 作者:
- 叶新玥1 赵云松2 张迈2 卢广先2 李远2 张剑2 骆宇时2 王恩会1 侯新梅1
YE Xinyue 1 , ZHAO Yunsong 2 , ZHANG Mai 2 , LU Guangxian 2 , LI Yuan 2 , ZHANG Jian 2 , LUO Yushi 2 , WANG Enhui 1 , HOU Xinmei 1
- 作者单位:
- 1. 北京科技大学碳中和研究院2. 中国航发北京航空材料研究院先进高温结构材料重点实验室
1. Carbon Neutrality Innovation Research Institute, University of Science and Technology Beijing, Beijing 100083, China; 2. Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
- 关键词:
- 单晶高温合金;Ru元素;组织;性能;
single crystal superalloy; Ru; microstructure; performance
- 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.