Thermal stress analysis in ZrO2 insulation coatings on Cr-Ni substrates during cooling process

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Okur A., Yigit R., Celik E., Sayman O.

Mathematical and Computational Applications, cilt.16, sa.3, ss.598-604, 2011 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.3390/mca16030598
  • Dergi Adı: Mathematical and Computational Applications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.598-604
  • Anahtar Kelimeler: FEM, Sol-gel preparation, Thermal properties
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

In this study, thermal stresses analysis of ZrO2 insulation coatings on Cr-Ni substrate during the cooling process was investigated. A transient thermal analysis was performed using finite element method (FEM) via ANSYS software. The temperature versus the time curve obtained from FEM solution was controlled with the temperaturetime diagram measured by a thermocouple. The results obtained from the numerical calculations were improved by the experimental measurement. Additionally, residual stresses were calculated by FEM solutions and they were compared in different points. The compressive and tensile stresses occurred in ZrO2 coating and Cr-Ni substrate owing to the different thermal expansion coefficients in each material, respectively. © Association for Scientific Research.