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

被引：0
作者：
O. I. Balitskii
Yu. H. Kvasnytska
L. M. Ivaskevych
H. P. Mialnitsa
K. H. Kvasnytska
机构：
[1] National Academy of Sciences of Ukraine,Karpenko Physicomechanical Institute
[2] Zachodniopomorski Uniwersytet Technologiczny w Szczecinie,Physicotechnological Institute of Metals and Alloys
[3] National Academy of Sciences of Ukraine,undefined
[4] “Zorya–Mashproekt” Scientific-Production Gas-Turbine Building Complex,undefined
来源：
Materials Science | 2022年 / 57卷
关键词：
heat- and corrosion-resistant nickel alloy; fatigue strength; blade; gas-turbine engine;
D O I：
暂无
中图分类号：
学科分类号：
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 2·107 cycles was recorded under loads of 220–280 MPa, which is higher than for the commercial alloy by 15–20%.
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页码：475 / 483
页数：8
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