سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

Cyclic oxidation behavior of uncoated and aluminum-rich nickel aluminide coated Rene-80 superalloy

Publish Year: 1397
Type: Journal paper
Language: English
View: 489

This Paper With 7 Page And PDF Format Ready To Download

Export:

Link to this Paper:

Document National Code:

JR_ACERPT-4-4_001

Index date: 15 October 2019

Cyclic oxidation behavior of uncoated and aluminum-rich nickel aluminide coated Rene-80 superalloy abstract

In this study, aluminide coating was employed to enhance the high-temperature cyclic oxidation of Rene-80 superalloy at 950ºC. The microstructural aspects and phase constituents of samples were  investigated with scanning electron microscopy (SEM) and x-ray diffraction (XRD) techniques. The result of oxidation tests showed that the weight gain in the uncoated sample was considerably higher than the aluminide coated sample, which indicates the higher rate of oxide formation on the uncoated surface. With the aid of microstructural and XRD analysis, it was confirmed that with the increment of oxidation cycles, the thickness of aluminide coating reduced and the protective β-NiAl phase was converted to alumina scales. According to the EDS results taken from the top coat, it was found that with the increase of oxidation cycles, the content of aluminium in the top layer was drastically decreased and the weight percentage of oxygen was considerably enhanced. Also, in higher oxidation cycles, other protective elements such as Cr and Ti outwardly diffused from the inter-diffusion zone (IDZ) layer which led to reduction in the content of these elements in inner zones of the aluminide coating. 

Cyclic oxidation behavior of uncoated and aluminum-rich nickel aluminide coated Rene-80 superalloy Keywords:

Cyclic oxidation behavior of uncoated and aluminum-rich nickel aluminide coated Rene-80 superalloy authors

Mosleh Naderi

Ceramic Division, Materials and Energy Research Center, Karaj, P.O. Box ۳۱۷۸۷-۳۱۶, Iran

Mohammad Farvizi

Ceramic Division, Materials and Energy Research Center, Karaj, P.O. Box ۳۱۷۸۷-۳۱۶, Iran

Kourosh Shirvani

Department of Advanced Materials and New Energies, Iranian Research Organization for Science and Technology (IROST), Tehran ۱۵۸۱۵-۳۵۳۸, Iran

Mohammad reza Rahimipour

Ceramic Division, Materials and Energy Research Center, Karaj, P.O. Box ۳۱۷۸۷-۳۱۶, Iran

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
Reed, R.C., The superalloys: fundamentals and applications , Cambridge university ...
Farvizi, M., Asgari, S., Effects of cold work prior to ...
Davis, J. R., ASM specialty handbook: heat-resistant materials , ASM ...
Latief, F.H., Sherif, E.S.M., Kakehi, K., Role of aluminide coating ...
Sims, C. T., Stoloff, N. S., Hagel, W. C., eds., ...
R. Bianco and R. A. Rapp, Pack cementation aluminide coatings ...
Pichoir, R., Influence of the Mode of Formation on the ...
Warnes, B. M., Improved aluminide/MCrAlX coating systems for super alloys ...
Goward, G. W., Boone, D. H., Mechanisms of formation of ...
Lee, J.-W., Kuo, Y.-C., Cyclic oxidation behavior of a cobalt ...
Kung, S. C., Rapp, R. A., Kinetic study of aluminization ...
Duret, C., Pichoir, R., Protective Coatings for High-Temperature Materials: Chemical ...
Galetz, M.C., Montero, X., Mollard, M., Günthner, M., Pedraza, F., ...
Firouzi, A., Shirvani, K., The structure and high temperature corrosion ...
Pineau, A., Antolovich, S. D., High temperature fatigue of nickel-base ...
Shirvani, K., Firouzi, S., Rashidghamat, A., Microstructures and cyclic oxidation ...
Das, D. K., Joshi, S. V, Singh, V., Evolution of ...
Nowotnik, A., Sieniawski, J., Góral, M., Pytel, M., Dychton, K., ...
Zielińska, M., Zagula-Yavorska, M., Sieniawski, J., Filip, R., Microstructure and ...
Latief, F. H., Kakehi, K., Tashiro, Y., Oxidation behavior characteristics ...
نمایش کامل مراجع