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Iranian Journal of Materials Science and Engineering، جلد ۱۶، شماره ۴، صفحات ۰-۰
عنوان فارسی
چکیده فارسی مقاله
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عنوان انگلیسی Effect of ZR Content on Oxide-Scale Spallation of Aluminide Coating
چکیده انگلیسی مقاله In the present study, Zirconium modified aluminide coating on the nickel-base superalloy IN-738LC was first created by high activity high temperature aluminizing based on the out-of-pack cementation method. Then, Zr coatings were applied to simple aluminide coatings by sputtering and heat treatment in order to study the effect of Zr on the coating microstructure and oxide spallation. Microstructural studies were conducted by using scanning electron microscopy (SEM), Energy Dispersive X-ray Spectrometry (EDS), and x-ray diffraction (XRD) microanalysis. The results indicated that zirconium modified aluminide coating, like aluminide coating, has a two-layer structure including a uniform outer layer of NiAl and an interdiffusion layer in which zirconium is in a form of solid solution in the coating. Furthermore, the 300nm Zr-coated NiAl demonstrated an excellent scale adhesion, a slow oxidation rate and lower amounts of some other elements such as Ti and Cr in its oxide layer leading to a pure aluminide oxide layer. 
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نویسندگان مقاله | R. Latifi
Iran University of Science and Technology


| S. Rastegari
Iran University of Science and Technology


| S. H. Razavi
Iran University of Science and Technology
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-71-3&slc_lang=en&sid=1
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/454/article-454-2014108.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه سرامیک
نوع مقاله منتشر شده Research paper
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