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Research on Vacuum Electric ARC Process of Engine Turbine Blade

Author: LiuJie
Tutor: WangJingZuo
School: Changchun University of Science and Technology
Course: Mechanical Manufacturing and Automation
Keywords: Vacuum arc coating Oxidation resistance hot corrosion Al-Si-Y surface
CLC: TK476
Type: Master's thesis
Year: 2014
Downloads: 2
Quote: 0
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Abstract


It is a very high temperature when a turbo engine works (over800℃). In order to improve the blade’s Oxidation resistance and hot corrosion, we need to plat a layer of Al-Si-Y on the surface by Vacuum arc deposition. The cathode target as the nuclear part of a vacuum arc deposition, according to the working status, the Material needs itself to be Compact, and without the defect that could affect the Electrical conductivity such as Non metallic inclusion, air hole, Shrinkage hole, Loose, pinhole to Guarantee the performance of continues of the vacuum arc deposition. Therefore, it is extremely important for the quality of the cathode target. First, without any deposition of the cathode target, Casted by no lacks and tested by X-ray. Then, preparation of aluminide coatings on nickel-based alloys selected using a vacuum electric arc of Technology, The resulting coating on the internal structure analysis and comparison with similar products imported. Finally,resistance to corrosion and oxidation resistance test and test data collected,and ultimately the performance of the coating system has been greatly improved, reaching levels similar import.

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CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Gas turbine ( gas turbine ) > Manufacturing process,installation
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