Characterization of plasma electrolytic oxide formed on AZ91 Mg alloy in KMnO4 electrolyte
作者： Duck-Young HWANG , Ki-Ryong SHIN , Bongyoung YOO , Deok-Yong PARK , Dong-Hyuk SHIN
DOI: 10.1016/S1003-6326(08)60359-3
关键词: Alloy 、 Inorganic chemistry 、 Corrosion 、 Layer (electronics) 、 Oxide 、 Plasma electrolytic oxidation 、 Barrier layer 、 Materials science 、 Coating 、 Chemical engineering 、 Diffusion barrier
摘要: The aim of this work is to investigate microstructure, corrosion resistance characteristics and nanohardness the oxide layer on AZ91 Mg alloy by applying different voltage with KMnO4 contained solution. There are lots closed pores that filled another compound compared typical surface morphology pore coated until 350 V coating voltage. thickness increases increasing formed in electrolyte potassium permanganate consists MgO Mn2O3. Corrosion potential obtained at plasma electrolytic oxidation(PEO) reaction stages depends existence manganese layer. inner barrier composed Mn2O3 may serve as diffusion enhance partially explain excellent anti-corrosion performance test. Nanohardness values increase be due effect from containing KMnO4.
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sci-hub.se 参考文章(10)
Kwo Zong Chong, Teng Shih Shih, Conversion-coating treatment for magnesium alloys by a permanganate–phosphate solution Materials Chemistry and Physics. ,vol. 80, pp. 191- 200 ,(2003) , 10.1016/S0254-0584(02)00481-9
Zhiming Shi, Guangling Song, Andrej Atrens, Influence of the β phase on the corrosion performance of anodised coatings on magnesium-aluminium alloys Corrosion Science. ,vol. 47, pp. 2760- 2777 ,(2005) , 10.1016/J.CORSCI.2004.11.004
A.L. Yerokhin, X. Nie, A. Leyland, A. Matthews, S.J. Dowey, Plasma electrolysis for surface engineering Surface and Coatings Technology. ,vol. 122, pp. 73- 93 ,(1999) , 10.1016/S0257-8972(99)00441-7
Houng-Yu Hsiao, Hua-Chih Tsung, Wen-Ta Tsai, Anodization of AZ91D magnesium alloy in silicate-containing electrolytes Surface & Coatings Technology. ,vol. 199, pp. 127- 134 ,(2005) , 10.1016/J.SURFCOAT.2004.12.010
Hiroyuki Umehara, Matsufumi Takaya, Yo Kojima, An Investigation of the Structure and Corrosion Resistance of Permanganate Conversion Coatings on AZ91D Magnesium Alloy Materials Transactions. ,vol. 42, pp. 1691- 1699 ,(2001) , 10.2320/MATERTRANS.42.1691
Jun Liang, Baogang Guo, Jun Tian, Huiwen Liu, Jinfang Zhou, Weimin Liu, Tao Xu, Effects of NaAlO2 on structure and corrosion resistance of microarc oxidation coatings formed on AM60B magnesium alloy in phosphate–KOH electrolyte Surface & Coatings Technology. ,vol. 199, pp. 121- 126 ,(2005) , 10.1016/J.SURFCOAT.2005.03.020
Hua Zhang, Guangchun Yao, Shulan Wang, Yihan Liu, Hongjie Luo, A chrome-free conversion coating for magnesium–lithium alloy by a phosphate–permanganate solution Surface & Coatings Technology. ,vol. 202, pp. 1825- 1830 ,(2008) , 10.1016/J.SURFCOAT.2007.07.094
Oscar Khaselev, Danny Weiss, Joseph Yahalom, Structure and composition of anodic films formed on binary Mg–Al alloys in KOH–aluminate solutions under continuous sparking Corrosion Science. ,vol. 43, pp. 1295- 1307 ,(2001) , 10.1016/S0010-938X(00)00116-5
Zhiming Shi, Guangling Song, Andrej Atrens, Influence of anodising current on the corrosion resistance of anodised AZ91D magnesium alloy Corrosion Science. ,vol. 48, pp. 1939- 1959 ,(2006) , 10.1016/J.CORSCI.2005.08.004
W.C. Oliver, G.M. Pharr, An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments Journal of Materials Research. ,vol. 7, pp. 1564- 1583 ,(1992) , 10.1557/JMR.1992.1564