Study on plasma-spraying of MCrAlY coatings

School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China; Z. L. Wang; Q. Li; School of Material Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China; C. Ju; School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China; Q. H. Song; School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China; Z. P. Sun; School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China; Y. F. Zhang; School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China

doi:10.15251/djnb.2021.163.915

journal article·2021-07Open access

Study on plasma-spraying of MCrAlY coatings

School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China, Z. L. Wang, Q. Li, School of Material Science & Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China, C. Ju, School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China, Q. H. Song, School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China, Z. P. Sun, School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China, Y. F. Zhang, School of Mechanical & Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, PR China

Digest Journal of Nanomaterials and Biostructures· Volume 16· Issue 3

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Source abstract

Abstract

In this paper, two kinds of MCrAlY coatings were prepared by atmospheric plasma spraying. The powders and coatings were characterized with scanning electron microscopy and energy dispersive spectrometry. X-ray diffraction and thermogravimetry differential thermal analysis were used to qualitatively analyze the phase. The change of powder mass with time and the change of heat absorption and exothermic were measured, and then the generation of new material was analyzed. It was found that the melting effect of the two kinds of powder by plasma spraying was good, and coating with high temperature oxidation resistance and hot corrosion resistance can be prepared. Both powders weight increased when heated in air, which indicates that oxidation occurs when the temperature rose. The main composition of NiCrAlY coating was γ′-Ni3Al, while NiCoCrAlYTa coating contained several kinds of NiAl composites.

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Research context

Metals & alloys Composites

OpenAlex topics: High-Temperature Coating Behaviors · Catalytic Processes in Materials Science · Intermetallics and Advanced Alloy Properties

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