Stress-Strain State in "Coating-Substrate" System after Coating Stability Loss Induced by Impact of Thermal Stresses; AIP Conference Proceedings; Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016

Bibliografski detalji
Parent link:	AIP Conference Proceedings Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020142, 5 p.]
Autor kompanije:	Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра материаловедения в машиностроении (ММС)
Daljnji autori:	Lyukshin P. A., Bochkareva S. A., Grishaeva N. Yu., Lyukshin B. A., Matolygina N. Yu., Panin S. V. Sergey Viktorovich
Sažetak:	Title screen Thermal barrier coatings (TBC) are aimed at protection of machine parts working under extremely high temperatures. One of the major problems at their exploitation is related to delamination of the coating from the substrate. In this concern, investigation of the patterns and evolution of the stress-strain state (SSS) at their interface is of particular interest. The main reasons of the delamination are associated with the distinction of thermo-physical properties (first of all, thermal expansion coefficient) of the interfaced material, as well as by the difference in heating conditions (heat supply and abstraction). The latter is of particular importance when the transient regimes take place under the heat impact, i.e. the TBC becomes rapidly heated, while the substrate has much lower temperature. In order to analyze and simulate the processes that give rise to the delamination, a number of problems is to be solved. At the first stage, the temperature variation induced by the thermal impact both in the coating and the substrate is to be determined. At the second stage, the distribution of the Stress Strain State (SSS) in the coating and the substrate are to be found. Based on the values of the calculated stresses, the stability loss patterns of the coating might be revealed. In doing so, the latter is regarded as a plate rested on Winkler elastic foundation. By defining the plate deflections in concern of its interaction with the substrate, the distribution of the SSS parameters at the contact surface can be found. Finally, the conditions to determine the TBC delamination from the substrate are estimated. Режим доступа: по договору с организацией-держателем ресурса
Jezik:	engleski
Izdano:	2016
Teme:	электронный ресурс труды учёных ТПУ напряженно-деформированные состояния покрытия подложки теплозащитные покрытия теплофизические свойства детали машин машины
Online pristup:	http://dx.doi.org/10.1063/1.4966435
Format:	Elektronički Poglavlje knjige
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652726