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Effect of K2Cr2O7 Concentration on Army Green Ceramic Layer Formed of 2A12 Alloy by Micro-Arc Oxidation

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Abstract:

2A12 alloy by MAO on main salts electrolyte system of phosphate sodium is investigated. By contrast test, the influences of arc starting voltage, the thickness of the ceramic layer , growth rate, and wear resistance with different K2Cr2O7 concentration are analyzed. If K2Cr2O7 concentration is 2.5g/L , the arc starting voltage reached the lowest, the surface topography is the best, the wear resistance is the well.

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Info:

Periodical:

Advanced Materials Research (Volumes 756-759)

Pages:

117-120

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.756-759.117

Citation:

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Online since:

September 2013

Authors:

Xiao Chao Shi, Jin Yong Xu, Cheng Gao, Gui Wang, Yi Qun Zhou

Keywords:

Army Green Ceramic Layer, K2Cr2O7 Concentration, Micro-Arc Oxidation, Wear Resistance

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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