NDLI: Processing of AlCoCrFeNiTi high entropy alloy by atmospheric plasma spraying

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Processing of AlCoCrFeNiTi high entropy alloy by atmospheric plasma spraying

Content Provider	Scilit
Author	Löbel, Martin Lindner, Thomas Kohrt, C. Lampke, Thomas
Copyright Year	2017
Description	Journal: Iop Conference Series: Materials Science and Engineering High Entropy Alloys (HEA) are gaining increasing interest due to their unique combination of properties. Especially the combination of high mechanical strength and hardness with distinct ductility makes them attractive for numerous applications. One interesting alloy system that exhibits excellent properties in bulk state is AlCoCrFeNiTi. A high strength, wear resistance and high-temperature resistance are the necessary requirements for the application in surface engineering. The suitability of blended, mechanically ball milled and inert gas atomized feedstock powders for the development of atmospheric plasma sprayed (APS) coatings is investigated in this study. The ball milled and inert gas atomized powders were characterized regarding their particle morphology, phase composition, chemical composition and powder size distribution. The microstructure and phase composition of the thermal spray coatings produced with different feedstock materials was investigated and compared with the feedstock material. Furthermore, the Vickers hardness (HV) was measured and the wear behavior under different tribological conditions was tested in ball-on-disk, oscillating wear and scratch tests. The results show that all produced feedstock materials and coatings exhibit a multiphase composition. The coatings produced with inert gas atomized feedstock material provide the best wear resistance and the highest degree of homogeneity.
Related Links	http://iopscience.iop.org/article/10.1088/1757-899X/181/1/012015/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/181/1/012015
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	181
Language	English
Publisher	IOP Publishing
Publisher Date	2017-03-17
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Coatings and Films Wear Resistance Atmospheric Plasma Spraying Plasma Sprayed Gas Atomized Feedstock
Content Type	Text
Resource Type	Article

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