铸造技术2017，Vol.38Issue(11)：2571-2575,5.DOI:10.16410/j.issn1000-8365.2017.11.003
航空发动机用单晶叶片薄壁效应研究
Thin-walled Effect for Single-crystal Blades in Aero Engines
刘维维 1朱鸥2
作者信息
- 1. 北京航空材料研究院先进高温结构材料国防科技重点实验室,北京100095
- 2. 中国航发商用航空发动机有限责任公司,上海201108
- 折叠
摘要
Abstract
Re-contained second-generation single-crystal cast bars with different cross-section area were prepared.The effect of cross-section area on the stress rupture property under several test conditions was studied.The results reveal that the scale effect of 1 mm tabular specimen and mm in diameter standard bar specimen from the same cast bar is obvious under the condition of 1 100 ℃/130 MPa,while it is opposite under the condition of 980 ℃/250 MPa,due to the severe oxidation effect.The stress rupture property of 1 mm tabular specimen from airfoil and mm standard bar specimen from cast bar is similar under the condition of either 1 100 ℃/130 MPa or 980 ℃/250 MPa,indicating that the microstructure effect is not remarkable.关键词
单晶合金/尺寸效应/组织效应/持久性能Key words
single-crystal alloy/scale effect/microstructure effect/stress rupture property分类
矿业与冶金引用本文复制引用
刘维维,朱鸥..航空发动机用单晶叶片薄壁效应研究[J].铸造技术,2017,38(11):2571-2575,5.
