MATEC Web Conf.
Volume 245, 2018International Scientific Conference on Energy, Environmental and Construction Engineering (EECE-2018)
|Number of page(s)||8|
|Section||Information and Measuring Technologies|
|Published online||05 December 2018|
Analysis of crystallographic orientation influence on thermal fatigue with delay of the single-crystal corset sample by means of thermo-elasto-visco-plastic finite-element modeling
Peter the Great Saint-Petersburg Polytechnic University, 194064, Polytechnicheskaya 29, Russia
2 Research and production association for research and design of power equipment I. I. Polzunova, 194021, Polytechnicheskaya 24, Russia
* Corresponding author: firstname.lastname@example.org
The influence of a delay time at the maximum temperature on the number of cycles before the macrocrack initiation for two thermal loading programs was investigated for single-crystal nickel-based superalloy VZhM4. An analytic approximation of a delay time influence was proposed. Comparison of the computational results and analytic formula on the basis of constitutive equations with the experimental data was performed for various single-crystal nickel-based superalloys and showed a good accuracy. The influence of crystallographic orientation of the corset sample on the thermal fatigue durability with delay times was investigated for various thermal loading programs and single-crystal nickel-based superalloys.
© The Authors, published by EDP Sciences, 2018
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