Stability Loss and Delamination of a Thermal Barrier Coating from the Substrate under Heat Loads

Статья в журнале

The paper proposes a simple two-layer model to assess the behavior of aheat-loaded thermal barrier coating–substrate system with neglect of thermallygrown oxide and bond coat. The model includes solutions of boundary valueproblems of thermal conduction, thermoelasticity, stability, and stress-strainstate after stability loss, and it also provides for coating delamination fromthe substrate after stability loss. It is shown that when the coating–substratesystem is exposed to intense heat, the coating experiences compressive stresseswhich can cause a loss of its stability. When the coating losses its stabilityon the elastic substrate, chess-board extrusion and intrusion regions withrespective tensile and compressive zones arise in the system. At a criticalstress intensity, the system losses its continuity at the coating–substrateinterface, and the coating delaminates from the substrate in tensile zones. Thezones of delamination at the coating–substrate interface are arrangedperiodically.

Журнал:

• Physical Mesomechanics
• Pleiades Publishing (Road Town)
• Индексируется в Web of Science, Scopus

Библиографическая запись: Stability Loss and Delamination of a Thermal Barrier Coating from the Substrate under Heat Loads [Electronic resource] / P. A. Lyukshin [et al.] // Physical Mesomechanics. – 2021. – Vol. 24. – Iss. 3. – P. 269-281. – DOI: 10.1134/S102995992103005X

Индексируется в:

• Scopus ( https://www.scopus.com/record/display.uri?eid=2-s2.0-85108355514&origin=resultslist )
• Web of science ( https://www.webofscience.com/wos/woscc/full-record/WOS:000662907800005 )
• РИНЦ ( https://www.elibrary.ru/item.asp?id=46903398 )
• ВАК ( https://www.elibrary.ru/item.asp?id=46903398 )