
Тип работы:	Предмет:	Язык работы:

Thermo-electro-mechanical modeling of thermal fatigue failure process of corset samples from single-crystal nickel superalloys

Работа №	64204
Тип работы	Авторефераты (РГБ)
Предмет	физика
Объем работы	10
Год сдачи	2020
Стоимость	2000 руб.
ПУБЛИКУЕТСЯ ВПЕРВЫЕ
Просмотрено	336

Не подходит работа?

Узнай цену на написание

Введение

The results of computations of the thermal and stress-strain state of single¬crystal corset specimens subjected to the action of periodic electric current, leading to variable inhomogeneous heating and subsequent thermal fatigue failure, are presented. The influence of maximum value and range of tem¬perature and also delay time at the maximum temperature on the number of cycles before the macrocrack formation is investigated. Comparison of the computational results with the experimental data for various single-crystal nickel-based superalloys showed a good accuracy.

Возникли сложности?

Нужна помощь преподавателя?

Помощь студентам в написании работ!

ДИПЛОМНЫЕ МАГИСТЕРСКИЕ ДИССЕРТАЦИИ

Курсовые Статьи Диплом Рязань

Заключение

The results of the computations show a good agreement with the experiment, which suggests that the finite-element computations in combination with ap¬plication of deformational criterion can be used to predict the thermal-fatigue strength of various single-crystal superalloy samples in wide range tempera¬tures.

Литература

[1] Shalin R.E., Svetlov I.L., Kachalov E.B. and other Single crystals of nickel heat-resistant alloys-M.: Mashinostroenie, 1997. - 336 p.
[2] Getsov L. B. Materials and strength of gas turbine parts.-Rybinsk: Publishing House Gas Turbo Technology. 2010- 2011
[3] Getsov L. B., Semenov A. C. Criteria of fracture of polycrystalline and single crystal materials under thermal cyclic loading // Proceedings of CKTI. Vol. 296, 2009, pp. 83-91.
[4] Semenov A.S., Getsov L.B. Thermal fatigue fracture criteria of single crys¬tal heat-resistant alloys and methods for identification of their parameters // Strength of Materials, 2014. Vol. 46, No. 1, p. 38-48.
[5] Getsov L.B., Semenov A.S., Staroselsky A. A failure criterion for single-crystal superalloys during thermocyclic loading // Materials and technology. 2008. Vol. 42, P. 312.
[6] Petrushin N. Oh. Logunov A.V., Kovalev A. I., Zverev A. F., Toropov V. M., Fedotov N. H. Thermophysical properties of Ni3Al—Ni3Nb directly crystallized eutectic composition / / High temperature thermophysics, 1976, 3.
[7] May S., Semenov A.S. Modeling of inelastic cyclic deformation of monocrys¬talline specimens // Proc. of the XXXIX week of science of SPbGPU. 2010. Vol. 5. P. 73-74.
[8] Semenov A. S. PANTOCRATOR is a finite-element software package focused on solving nonlinear problems of mechanics / Proceedings of the V-th Inter¬national. Conf. "Scientific and technical problems of forecasting reliability and durability of structures". SPb.: Izd-vo SPbSPU, 2003. p. 466-480.
[9] Cailletaud G.A. Micromechanical approach to inelastic behaviour of metals // Int. J. Plast., 1991, 8, p. 55-73.
[10] A. S. Semenov. Identification of anisotropy parameters of phenomenological plasticity criterion for single crystals on the basis of micromechanical model // Scientific and technical sheets SPbGPU. Physical and mathematical Sciences. 2014. No. 2 (194). p. 15-29.
[11] Kablov E. N., Petrushin N. O. Svetlov I. L., Demonis I. M. Nickel casting heat¬resistant alloys of the new generation. The jubilee nauch.- tech. sat. Aviation materials and technologies. M: Proceedings of VIAM 2012, p. 36-52.
[12] Semenov S. G., Getsov L. B., Semenov A. S., Petrushin N. V., Ospennikova O. G., A. A. Zhivushkin The issue of enhancing resource capabilities of nozzle blades of gas turbine engines through the use of new single crystal alloy // Journal of Machinery Manufacture and Reliability. 2016. No.4, p.30-38.
[13] Zinoviev V.E., Thermo-physical properties of metals at high temperatures. Moscow: Metalurgia, 1989.
[14] Chirkin V.S. Thermophysical properties of nuclear materials. Moscow:Atomizdat, 1968, p. 161.
[15] Maslenkov S.B., Maslenkova E.A. Steels and alloys for high temperatures. Moskow: Metallurgia, 1991.
Artem V. Savikovskii,SPbSPU,Politechnicheskaya 29;195251,St.Petersburg,Russia
Artem S. Semenov,SPbSPU,Politechnicheskaya 29;195251, St.Petersburg, Russia
Leonid B. Getsov,NPO CKTI,Politechnicheskaya 24;194021,St. Petersburg,Russia