Effect of process parameters of plasma electrolytic oxidation on microstructure and corrosion properties of magnesium alloys

被引：0
|
作者：
机构：
[1] Pezzato, L.
[2] Brunelli, K.
[3] Gross, S.
[4] Magrini, M.
[5] Dabalà, M.
来源：
Pezzato, L. (luca.pezzato@studenti.unipd.it) | 1600年 / Kluwer Academic Publishers卷 / 44期
关键词：
In this work; a plasma electrolytic oxidation process was applied to AZ91 and AM50 magnesium alloys and commercially pure magnesium to produce a protective surface layer. The plasma electrolytic oxidation process was carried out in an alkaline phosphate solution with a DC power supply; using relatively high current densities and short treatment times. The influence of some important process parameters such as current density; treatment time and voltage was studied. The layers were characterised by scansion electron microscopy; X-ray diffraction and X-ray photoelectron spectrometry; in order to investigate the effect of the process parameters on the microstructure and chemical composition. The corrosion resistance properties of the obtained layers were investigated by potentiodynamic anodic polarization and electrochemical impedance spectroscopy tests. The current density; applied during the treatment; influenced the morphology and the thickness of the coatings; and; consequently; the corrosion resistance. The corrosion tests evidenced that the layers obtained with plasma electrolytic process provided a good corrosion protection to the magnesium and magnesium alloys. © 2014 Springer Science+Business Media Dordrecht;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [21] Effect of Ultrasonic Frequency on Structure and Corrosion Properties of Coating Formed on Magnesium Alloy via Plasma Electrolytic Oxidation
    Fatimah, Siti
    Hazmatulhaq, Farah
    Sheng, Yujun
    Suhartono, Tri
    Oh, Jeong Moo
    Nashrah, Nisa
    Kang, Jee-Hyun
    Ko, Young Gun
    MATERIALS, 2023, 16 (15)
  • [22] A universal electrolyte for the plasma electrolytic oxidation of aluminum and magnesium alloys
    Kossenko, Alexey
    Zinigrad, Michael
    MATERIALS & DESIGN, 2015, 88 : 302 - 309
  • [23] Effects of processing parameters on the adhesion and corrosion resistance of oxide coatings grown by plasma electrolytic oxidation on AZ31 magnesium alloys
    Lou, Bih-Show
    Yen, Chien-An
    Chen, Yen-Yu
    Lee, Jyh-Wei
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 10 : 1355 - 1371
  • [24] Research Progress on the Wear and Corrosion Resistant Plasma Electrolytic Oxidation Composite Coatings on Magnesium and Its Alloys
    Zhao, Chen
    Wang, Xingwei
    Yu, Bo
    Cai, Meirong
    Yu, Qiangliang
    Zhou, Feng
    COATINGS, 2023, 13 (07)
  • [25] Simultaneous reduction of wear and corrosion of titanium, magnesium and zirconium alloys by surface plasma electrolytic oxidation treatment
    Nykyforchyn, H. M.
    Agarwala, V. S.
    Klapkiv, M. D.
    Posuvailo, V. M.
    CORROSION IN THE MILITARY II, 2008, 38 : 27 - +
  • [26] Effects of Sodium Fluoride on Structure and Corrosion Resistance of Plasma Electrolytic Oxidation Ceramic Coatings on Magnesium Alloys
    Yao, Z. P.
    Liu, X. R.
    Li, L. L.
    Qi, S. F.
    Jiang, Z. H.
    CORROSION, 2010, 66 (08)
  • [27] Effect of frequency of plasma electrolytic oxidation on the microstructure and corrosion resistance of 6061 aluminium alloy
    Oh, G. H.
    Yoon, J. K.
    Huh, J. Y.
    Doh, J. M.
    SURFACE & COATINGS TECHNOLOGY, 2023, 471
  • [28] Effect of NH4F Concentration on Microstructure and Properties of Fluoride Coatings on Magnesium Alloy by Plasma Electrolytic Oxidation
    Luo L.
    Peng Z.-J.
    Zhou J.-S.
    Liang J.
    Surface Technology, 2023, 52 (06): : 70 - 79
  • [29] Electrochemical corrosion properties of CeO2-containing coatings on AZ31 magnesium alloys prepared by plasma electrolytic oxidation
    Lim, Tae Seop
    Ryu, Hyun Sam
    Hong, Seong-Hyeon
    CORROSION SCIENCE, 2012, 62 : 104 - 111
  • [30] Corrosion resistance and microstructure characteristics of plasma electrolytic oxidation coatings formed on AZ31 magnesium alloy
    Wang, H. M.
    Chen, Z. H.
    Li, L. L.
    SURFACE ENGINEERING, 2010, 26 (05) : 385 - 391
12345