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| 1 | Investigation of rare earth sealing of porous micro-arc oxidation coating formed on AZ91D magnesium alloy显示文摘Magnesium and its alloys have been used in many industries, but they are reactive and require protection against aggressive envi-ronments. In this study, oxide coatings were applied on AZ91D magnesium alloy using micro-arc oxidation (MAO) process. Then, in order to seal the pores of the MAO coatings, the samples were immersed in cerium bath for different times. The surface morphologies and composi-tions of the coatings were analyzed by scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS), respectively. The corrosion behavior of the coatings was investigated with electrochemical impedance spectroscopy (EIS) and potentiodynamic polariza-tion tests in 3.5 wt.% NaCl solution. The amount of the porosity of the coating was measured by electrochemical method. It was found that the sealing treatments by immersion in cerium bath successfully sealed the pores of the MAO coatings. The results of the corrosion tests showed that the MAO coating which was sealed in Ce bath for 10 min enhanced the corrosion resistance of the substrate significantly. Fur-thermore, this coating had the lowest amount of the porosity among the coatings.) | M.Laleh Farzad Kargar A.Sabour Rouhaghdam | 2012 | Journal of Rare Earths2012，30，12： | 19 |
| 2 | Corrosion and wettability of PEO coatings on magnesium by addition of potassium stearate显示文摘Hydrophobic PEO coatings were fabricated in an electrolyte containing potassium stearate.The wetting behaviour of coated samples was studied using dynamic and static contact angle.Also,the corrosion behaviour of the samples was evaluated by polarization method.The dynamic contact angle and hysteresis of the contact angle for PEO coating were evaluated by Wilhelmy plate method.There was an increase in the contact angle of the nanocomposite and traditional PEO coatings when potassium stearate was added to the electrolyte up to 130°.The more hydrophobic coatings,showed more corrosion resistance in 3.5 wt.%NaCl solution.The synergistic effect of potassium stearate and nanoparticles increased the hydrophobicity because of assembling of fatty acid on ceramic powder. | S.S.Farhadi M.Aliofkhazraei Gh.Barati Darband A.Abolhasani A.Sabour Rouhaghdam | 2017 | Journal of Magnesium and Alloys2017，5，2： | 10 |
| 3 | Effect of surface nanocrystallization and PPEC time on complex nanocrystalline hard layer fabricated by plasma electrolysis显示文摘Size distribution of nano-carbides produced by duplex treatments of surface nanocrystallization(by surface severe plastic deformation) and plasma electrolytic carburizing on CP-Ti was investigated.Skewness and kurtosis of Gussian shape distribution curves were studied and the effect of time was determined.The usage of longer time is more suitable for achieving less size of complex nano-carbides.Surface roughness of treated samples was measured.It is observed that there is an optimum level for time on surface roughness increasing(difference between two measured data). | M.ALIOFKHAZRAEI SH.AHANGAR ANI A.SABOUR ROUHAGHDAM | 2010 | Transactions of Nonferrous Metals Society of China2010，20，3： | 6 |
| 4 | Effect of the duty cycle of pulsed current on nanocomposite layers formed by pulsed electrodeposition显示文摘Nickel-tungsten/carbon nanotube nanocomposite layers with high content and uniform dispersion of carbon nanotubes were fabricated using pulsed electrodeposition technique.Nanocomposite layers were analyzed by scanning electron microscopy, atomic force microscopy, microhardness, and Tafel polarization tests.The effect of the duty cycle of pulsed current or concentration of carbon nanotubes in the metallic matrix on electrochemical and mechanical properties of obtained layers has been investigated.It has been shown that both the electrochemical and mechanical properties of nanocomposite layers that formed by pulsed current were improved significantly with respect to un-composed Ni-W layer.The results were not only concerned by the concentration of carbon nanotubes in the layer but also influenced by the distribution of nanoparticulates in the metallic matrix. | M.Aliofkhazraei Sh.Ahangarani A.Sabour Rouhaghdam | 2010 | Rare Metals2010，29，2： | 4 |
| 5 | Systematic Study of Nanocrystalline Plasma Electrolytic Nitrocarburising of 316L Austenitic Stainless Steel for Corrosion Protection显示文摘很多研究在 nanocrystalline 血浆的使用上被报导了为表面为更高的腐蚀抵抗不锈钢变硬的电解 nitrocarburising 技术源于这种技术。然而,很少的研究在 nanocrystalline 血浆的优化上集中了电解 nitrocarburising 过程参数。在这研究,实验(雌动物)的一个图案技术, Taguchi 方法,被用来优化 thenanocrystalline 血浆不仅为表面变硬而且为 316L 的腐蚀保护的电解 nitrocarburising 由控制涂层 process'sfactors.The 的奥氏体的不锈钢试验性的设计由四个因素(过程的脲集中,电解质的电的电导率,电压和持续时间)组成了,每包含的 threelevels.Potentiodynamic 极化测量被执行决定涂的样品的腐蚀电阻。结果用相关软件被分析。signal-to-noise (S/N ) 的平均数的分析比率显示 nanocrystallineplasma 的腐蚀电阻电解 nitrocarburised 316L 不锈钢被层次在 Taguchi 直角的数组显著地影响。为腐蚀电阻的优化涂层参数是为脲集中的 1150g/L,为电解质的电的电导率的 360 mS/cm,为应用电压的 260 V,在处理时间的 6 min。为每个因素的贡献的百分比被变化(ANOVA ) 的分析决定。结果证明应用电压是影响涂层的腐蚀电阻的最重要的因素。 | M.Aliofkhazraei P.Taheri A.Sabour Rouhaghdam Ch.Dehghanian | 2007 | Journal of Materials Science & Technology2007，23，5： | 3 |
| 6 | Mechanical behavior of TiN/TiC multilayer coatings fabricated by plasma assisted chemical vapor deposition on AISI H13 hot work tool steel显示文摘 | M. Azadi A. Sabour Rouhaghdam S. Ahangarani H.H. Mofidi | 2014 | Surface & Coatings Technology2014，，： | 2 |
| 7 | Effect of electrolyte temperature on the nano-carbonitride layer fabricated by surface nanocrystallization and plasma treatment on a γ-TiAl alloy显示文摘The distribution of nano-carbonitrides produced by the treatments of surface nanocrystallization and plasma electrolytic carbonitriding on a γ-TiAl was investigated by means of figure analysis. The skewness and kurtosis of Gaussian shape distribution curves were studied and the effect of electrolyte temperature was determined. The usage of lower temperatures of the electrolyte is more suitable for achieving lower sizes of complex nano-carbonitrides. The surface roughness of treated samples was measured and it was observed that there is an optimum level of electrolyte temperature for surface roughness increase (difference between two measured data). | M. Aliofkhazraei A. Sabour Rouhaghdam H. Hassannejad | 2009 | Rare Metals2009，28，5： | 2 |
| 8 | Preparation and characterization of Ni-P-nanodiamond coatings:Effects of surfactants显示文摘 | Abdoli M Sabour Rouhaghdam A | 2013 | Diamond Relat Mater2013，31，1： | 1 |
| 9 | Fabrication of function- ally gradient nanocomposite coatings by plasma electrolytic oxidation based on variable duty cycle 显示文摘 | Aliofkhazraei M Rouhaghdam S A | 2012 | Appl Surf Sci2012，258，： | 1 |
| 10 | Mechanical behavior of Ti N/Ti C multilayer coatings fabricated by plasma assisted chemical vapor deposition on AISI H13 hot work tool steel显示文摘 | Azadi M Sabour Rouhaghdam A Ahangarani S | 2014 | Surface and Coatings Technology2014，245，： | 1 |
| 11 | Investigation of the microstructure and oxidation behavior of CR-modified aluminide coatings on y-TiA1 alloys显示文摘 | JAFARIAN H R MIRZAMOHAMMDI S ROUHAGHDAM A S ALIOFKHAZRAEI M | 2012 | Materials Science2012，47，4： | 1 |
| 12 | Effect of alumina sol addition to micro-arc oxidation electrolyte on the properties of MAO coatings formed on magnesium alloy AZ91D 显示文摘 | LALEH M ROUHAGHDAM A S SHAHRABI T SHANGHI A | 2010 | Journal of Alloys and Compounds2010，496，： | 1 |
| 13 | Preparation and charaeterization of Ni P/nanodiamond coatings: Effects of surfactants 显示文摘 | Abdoli M Sabour Rouhaghdam A | 2013 | Diamond & Related Materials2013，31，： | 1 |
| 14 | Effect of Temperature on Pitting Corrosion Resistance of 316 Stainless Steel Coated by Cerium Oxide Film in 3.5% NaCl Solution显示文摘One of the main problems of stainless steel is its poor pitting corrosion resistance in the aggressive environment containing Cl-,such as seawater.In this paper we investigated the corrosion behavior of the 316 stainless steel coated by cerium oxide nanocoating prepared by sol-gel process.Potentiodynamic polarization and electrochemical impedance spectroscopy(EIS)were used to study the corrosion behavior of cerium oxide nanocoatings in 3.5% NaCl solution.The microstructure of the cerium oxide was examined by scanning electron microscopy(SEM)and the formed phases was identified by X-ray diffraction(XRD).The pitting corrosion resistance of the cerium oxide nanocoating was found to be improved after heat treatment of the cerium oxide nanocoating at 300℃for 30 min. | H.Hasannejad T.Shahrabi A.Sabour Rouhaghdam M.Aliofkhazraei | 2008 | Journal of Materials Science & Technology2008，24，5： | 1 |
| 15 | Duplex Surface Treatment of Pre-Electroplating and Pulsed Nanocrystalline Plasma Electrolytic Carbonitriding of Mild Steel显示文摘 | M. Aliofkhazraei S.H.H. Mofidi A. Sabour Rouhaghdam E. Mohsenian | 2008 | Journal of Thermal Spray Technology2008，，3： | 1 |
| 16 | Nanostructured layer formed on CP-Ti by plasma electrolysis (effect of voltage and duty cycle of cathodic/anodic direction)显示文摘 | M. Aliofkhazraei A. Sabour Rouhaghdam A. Heydarzadeh H. Elmkhah | 2008 | Materials Chemistry and Physics2008，，2： | 1 |
| 17 | Fabrication of TiC/WC ultra hard nanocomposite layers by plasma electrolysis and study of its characteristics显示文摘 | ALIOFKHAZRAEI M ROUHAGHDAM A S | 2010 | Surface and Coatings Technology2010，，： | 1 |
| 18 | Tribological behaviour of mechanically synthesized titanium-boron carbide nano?structured coating'显示文摘 | Aliotkhazraei M Rouhaghdam AS | 2012 | J Nanosci Nanotechnol2012，12，8： | 1 |
| 19 | Abrasive wear behaviour of Si3N4/TiOananocomposite coatings fabricated by plasma electrolytic oxidation 显示文摘 | ALIOFKHAZRAE1 M SABOUR ROUHAGHDAM A SHAHRABI T | 2010 | Surface and Coatings Technology2010，205，： | 1 |
| 20 | Fabrication of Ti C/WC ultra hard nanocomposite layers by plasma electrolysis and study of its characteristics显示文摘 | Aliofkhazraei M Sabour Rouhaghdam A | 2010 | Surface&Coatings Technology2010，205，1： | 1 |
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