Karafan Journal

Karafan Journal

Effect of Sintering Temperature of YSZ Coating on Inconel 738 Low Carbon Superalloy by Electrophoretic Method

Document Type : Original Article

Author
Hasan Ezzati
Faculty Member, Department of Materials and Metallurgical Engineering, Technical and Vocational University (TVU), Tehran, Iran.
10.48301/kssa.2024.418776.2722
Abstract
Yttria stabilized Zirconia (YSZ) coatings are used as thermal barrier coatings in airspace and gas turbine industries. In this study, the application of zirconia coatings stabilized with 8% weight of ytteria was investigated using the electrophoretic deposition (EPD) method in a solution containing acetone and ethanol with a volume fraction of 3 to 1 on the substrate of Inconel 738 low carbon alloy. The present research studied the effect of process parameters of sintering temperature, surface roughness, and adhesion. In addition, the coating structure was studied using X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The results showed that the coated samples' hardness, adhesion, and surface roughness were determined after sintering at 900, 1050, and 1200 OC for 2 and 4 hours. As the temperature increases, the hardness and stickiness of the sample increase, and the surface roughness decreases. This increase in the hardness and adhesion of the coating surface at the sintering temperature of 1200 OC and in 4 hours is greater than that in 2 hours.
Keywords
Thermal Barrier Coating
Yttria Stabilized Zirconia Electrophoretic Deposition Inconel 738 Low Carbon
8YSZ Coating
Sintering
Subjects
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Karafan Journal
Volume 21, Issue 3
Technical and Engineering
Autumn 2024
Pages 439-454

  • Receive Date 10 October 2023
  • Revise Date 09 December 2023
  • Accept Date 30 January 2024