Please use this identifier to cite or link to this item: https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/15733
Title: An Elucidation On Adhesive Strength Of Al2o3 And Zro25cao Composite Coatings Applied On Al-6061 & Ci Substrates
Authors: Abhinav
Krishnamurthy, N
Jain, Ranjana
Talpasai, Phv Sesha
Keywords: Plasma Sprayed Coatings
Thermal Barrier Coatings
Microstructure
Adhesion Strength
Issue Date: Jun-2018
Publisher: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD)
Abstract: In this study, the adhesion strength of atmospheric plasma sprayed coatings on cast iron and Al-6061substrates were carried out. Alumina and calcia stabilized zirconia in 50:50 proportion by weight were blended in a ball mill and applied as a top coat. The top coat thickness was varied as 100 µm, 200 µm, and 300µm. Adhesion test was conducted as per ASTM C633 standard and a comparative analysis was done. SEM micrographs revealed that the weakest link was formed between the top coat/bond coat interfaces in all the coating systems. Relatively higher adhesion strength was found due to the excellent metallurgical bonding between Al2O3 -ZrO2 ·5CaO topcoat and Ni-Al bond coat in the case of the cast iron 300µm coating system. An attempt has been made to bring out an insight into the principal causes of adhesion failure for the above coating combinations.
URI: http://dx.doi.org/10.13140/RG.2.2.17125.45281
https://gnanaganga.inflibnet.ac.in:8443/jspui/handle/123456789/15733
ISSN: 2249-6890
2249-8001
Appears in Collections:Journal Articles

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