Fatigue Fracture of the Blades of Gas-Turbine Engines Made of a New Refractory Nickel Alloy

被引：14
作者：
Balitskii, O., I [1 ,2 ]
Kvasnytska, Yu H. [3 ]
Ivaskevych, L. M. [1 ]
Mialnitsa, H. P. [4 ]
Kvasnytska, K. H. [3 ]
机构：
[1] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, Lvov, Ukraine
[2] Zachodniopomorski Uniwersytet Technol Szczecinie, Szczecin, Poland
[3] Natl Acad Sci Ukraine, Physicotechnol Inst Met & Alloys, Kiev, Ukraine
[4] Zorya Mashproekt Sci Prod Gas Turbine Bldg Comple, Mykolaiv, Ukraine
来源：
MATERIALS SCIENCE | 2022年 / 57卷 / 04期
关键词：
heat- and corrosion-resistant nickel alloy; fatigue strength; blade; gas-turbine engine; HYDROGEN;
D O I：
10.1007/s11003-022-00568-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We perform experimental investigations of the fatigue fracture of turbine blades in the second stage of power gas-turbine engines. The blades were made of a specially developed refractory corrosion-resistant alloy containing rhenium and tantalum (4.07 and 2.62 wt.%, respectively). This alloy has high characteristics of fatigue strength. Moreover, its mechanical characteristics (long- and short-term strengths and ductility) and corrosion resistance correspond to the corresponding characteristics of the CM88Y-VI commercial alloy. The fatigue fracture of blades in the course of the tests for a loading base of 2 center dot 10(7) cycles was recorded under loads of 220-280 MPa, which is higher than for the commercial alloy by 15-20%.
引用
收藏
页码：475 / 483
页数：9
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