Title of article :
PEO coatings obtained on an Mg–Mn type alloy under unipolar and bipolar modes in silicate-containing electrolytes
Author/Authors :
Gnedenkov، نويسنده , , S.V. and Khrisanfova، نويسنده , , O.A. and Zavidnaya، نويسنده , , A.G. and Sinebryukhov، نويسنده , , S.L. and Egorkin، نويسنده , , V.S. and Nistratova، نويسنده , , M.V. and Yerokhin، نويسنده , , A. and Matthews، نويسنده , , A.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
Protective surface layers with high corrosion resistance (Rp = 3.3·105 ohm cm2) and significant microhardness (H = 4.8 GPa), as compared to the substrate material, were obtained on MA8 magnesium alloy by bipolar Plasma Electrolytic Oxidation (PEO) in a silicate–fluoride electrolyte. The phase and elemental composition and morphology of the coatings were investigated. It was found that the application of the bipolar PEO mode enables one to synthesise on the alloyʹs surface a high-temperature phase of magnesium silicate, forsterite (Mg2SiO4) having good anticorrosion and mechanical properties.
Keywords :
Mg–Mn alloy , Plasma Electrolytic Oxidation , Microhardness , anticorrosion properties , Silicate–fluoride electrolyte
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology
