A Novel Composite Deformation Measurement Method of Materials Under Coupling of High-Temperature and Hybrid Tensile-Flexural Loads

Ti-6Al-4V and Incol 718 alloys are widely used to manufacture aero-engine compressor blades, which are subjected to high-temperature and hybrid tensile-flexural loads in service. This study presents a novel measurement method to obtain composite deformation of materials under coupling of high-temper...

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Bibliographic Details
Published in:IEEE transactions on instrumentation and measurement 2022, Vol.71, p.1-11
Main Authors: Zhao, Jiucheng, Wang, Kexin, Ren, Zhuang, Tian, Liya, Zhang, Shizhong, Zhao, Hongwei
Format: Article
Language:English
Subjects:
Alloys
Blades
Composite deformation
compressor blade materials
Compressor blades
Coupling
Couplings
Deformation
Deformation effects
Deformation resistance
geometric nonlinearity
Grippers
High temperature
hybrid tension–flexural
Load
Load modeling
Measurement methods
Mechanical properties
Metals
Strain
Temperature measurement
Tensile stress
Titanium base alloys
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Summary:Ti-6Al-4V and Incol 718 alloys are widely used to manufacture aero-engine compressor blades, which are subjected to high-temperature and hybrid tensile-flexural loads in service. This study presents a novel measurement method to obtain composite deformation of materials under coupling of high-temperature and hybrid tensile-flexural loads, aiming to investigate the effects of tension, flexural, and temperature on the composite deformation of the above two materials. The effects of tensile load, flexural load, and temperature on the composite deformation of Ti-6Al-4V alloy and Incol 718 alloy were systematically analyzed by the established measurement method and experiments. The theoretical analysis results are in good agreement with the experimental data, and the maximum relative error of the two is less than 5%. The study found that the composite deformation resistance of the material increases with the increase in tensile load and decreases with the increase in temperature. It is worth noting that when the tensile load is properly applied, the influence of high temperature on the composite deformation resistance of the material is significantly weakened or even disappeared. The measurement method is useful to reveal the coupling effect between tension, flexural, and high temperature on the mechanical properties of the material.
ISSN:0018-9456
1557-9662
DOI:10.1109/TIM.2022.3173279