Application of the response surface method in optimizing the thickness and hardness of vanadium carbide coatings created by the electrolytic plasma method

Subject Areas : journal of New Materials

Mehran Tadayonsaidi ¹ , Babak Ghorbanian ²

1 - Assistant Professor, Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran
2 - Material Department, Phd studeny, Semnan University, Semnan, Iran

Received: 2018-05-09 Accepted : 2018-12-15 Published : 2019-01-21

Keywords: hardness, electrolytic plasma, Vanadium carbide, RMS test design,

Abstract :

One of the new methods of coating coatings is the use of electrolytic plasma method. In the present study, we try to use an electrolytic plasma method of vanadium carbide coating on the surface of the specimen and, in the next step, optimize the effective parameters in making these coatings. In this regard, the RMS test method was used to optimize the coating. The electrolyte is composed of materials such as vanadium oxide, chloride, and NaOH. That NaOH is considered as a conductive enhancer as an important parameter. In addition to NaOH, the difference in voltage and cooking time are also the most important parameters affecting the coating properties, which in this study are considered as independent variables. The dependent variables of the research can also be indicated by thickness and hardness. The results of the study show that the optimum state of the vanadium carbide sample produced by the electrolytic plasma method is 100 V, the NaOH content is about 50 g / l and the duration is 6.65 minutes. The optimum specimen has a hardness of about 1250 Vickers and a thickness of about 29.5 microns.

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