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

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.


Вуз: Санкт-Петербургский государственный политехнический университет (ФГБОУ ВПО «СПбГПУ»)

ID: 5c27a4a87966e15d69aba896
UUID: 128f5df0-edb7-0136-144a-525400005860
Язык: Английский
Опубликовано: почти 4 года назад
Просмотры: 5


Артем Савиковский

Санкт-Петербургский государственный политехнический университет (ФГБОУ ВПО «СПбГПУ»)


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