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High temperature corrosion behavior of superficially applied CeO2 on some Fe, Co and Ni based super alloys

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dc.contributor.author Gitanjaly
dc.contributor.author Bala, N.
dc.contributor.author Singh, H.
dc.contributor.author Prakash, S.
dc.date.accessioned 2016-11-18T10:44:27Z
dc.date.available 2016-11-18T10:44:27Z
dc.date.issued 2016-11-18
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/449
dc.description.abstract High temperature corrosion of metals and alloys can be controlled by the use of inhibitors. In this work, the role of a superficially applied CeO2 coating to combat high temperature corrosion of some super alloys such as Superfer 800H (Alloy A), Superco 605 (Alloy B) and Superni 75 (Alloy C) has been investi gated. An accelerated corrosion testing of the coated as well as bare superalloys was done in a molten salt envi ronment (Na2SO4–60% V2O5) at 900°C for 50 cycles. The weight change, Xray diffraction (XRD), Scan ning Electron Microscopy (SEM) and Electron Probe MicroAnalysis (EPMA) of the exposed specimens were carried out to characterize the oxide scales. The percentage decrease in the weight gain in alloys A, B and C, with superficially applied CeO2, was found to be 23, 35 and 68%, respectively. It was concluded that ceria (ceric oxide) was most effective in reducing the corrosion rate in alloy C. en_US
dc.language.iso en_US en_US
dc.subject Superalloys en_US
dc.subject Hot corrosion en_US
dc.subject Inhibitors en_US
dc.subject Oxide additives en_US
dc.title High temperature corrosion behavior of superficially applied CeO2 on some Fe, Co and Ni based super alloys en_US
dc.type Article en_US


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