Microstructure and corrosion behavior of plasma electrolytic oxidation coated magnesium alloy pre-treated by laser surface melting

被引：46
|
作者：
Wang, Lingqian [1 ,2 ]
Zhou, Jiansong [1 ]
Liang, Jun [1 ]
Chen, Jianmin [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2012年 / 206卷 / 13期
关键词：
Magnesium alloy; Corrosion resistance; Laser surface melting; Plasma electrolytic oxidation; WEAR-RESISTANCE; COATINGS; PROTECTION; AZ91D;
D O I：
10.1016/j.surfcoat.2011.12.040
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An AZ91D magnesium alloy was treated using duplex techniques of laser surface melting (LSM) and plasma electrolytic oxidation (PEO). The microstructure, composition and corrosion behavior of the laser melted surface. PEO coatings, ISM-PEO duplex coatings as well as the as-received specimen were characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and electrochemical corrosion tests, respectively. Especially, the effect of LSM pre-treatment on the microstructure, composition and corrosion resistance of the PEO coatings was investigated. Results showed that the corrosion resistance of AZ91D alloy was marginally improved by LSM due to the refinement of grains, redistribution of beta-phase (Mg17Al12) and increase of Al on the surface. Both the PEO and duplex (LSM-PEO) coatings improved significantly the corrosion resistance of the AZ91D alloys, while the duplex (LSM-PEO) coating exhibited better corrosion resistance compared with the PEO coating. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：3109 / 3115
页数：7
相关论文
共 50 条
  • [21] Effect of process parameters of plasma electrolytic oxidation on microstructure and corrosion properties of magnesium alloys
    Pezzato, L.
    Brunelli, K.
    Gross, S.
    Magrini, M.
    Dabala, M.
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 2014, 44 (07) : 867 - 879
  • [22] Laser controlled melting of pre-treated zirconia surface
    Yilbas, B. S.
    Akhtar, S. S.
    Karatas, C.
    APPLIED SURFACE SCIENCE, 2011, 257 (15) : 6912 - 6918
  • [23] Corrosion behavior of porous magnesium coated by plasma electrolytic oxidation in simulated body fluid
    Ghasemi, Alireza
    Kamrani, Sepideh
    Huebler, Daniela
    Fleck, Claudia
    MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2019, 70 (09): : 1561 - 1569
  • [24] Corrosion behaviors and effects of corrosion products of plasma electrolytic oxidation coated AZ31 magnesium alloy under the salt spray corrosion test
    Wang, Yan
    Huang, Zhiquan
    Yan, Qin
    Liu, Chen
    Liu, Peng
    Zhang, Yi
    Guo, Changhong
    Jiang, Guirong
    Shen, Dejiu
    APPLIED SURFACE SCIENCE, 2016, 378 : 435 - 442
  • [25] Enhanced corrosion resistance of magnesium alloy by plasma electrolytic oxidation plus hydrothermal treatment
    Dou, Jinhe
    Wang, Jing
    Li, Huancai
    Lu, Yupeng
    Yu, Huijun
    Chen, Chuanzhong
    SURFACE & COATINGS TECHNOLOGY, 2021, 424
  • [26] Microstructure and corrosion behavior of Ca/P coatings prepared on magnesium by plasma electrolytic oxidation
    Yang, Junjie
    Lu, Xiaopeng
    Blawert, Carsten
    Di, Shichun
    Zheludkevich, Mikhail L.
    SURFACE & COATINGS TECHNOLOGY, 2017, 319 : 359 - 369
  • [27] Influence of chloride ion concentration on the electrochemical corrosion behaviour of plasma electrolytic oxidation coated AM50 magnesium alloy
    Liang, J.
    Srinivasan, P. Bala
    Blawert, C.
    Dietzel, W.
    ELECTROCHIMICA ACTA, 2010, 55 (22) : 6802 - 6811
  • [28] Effects of oxidation time on corrosion resistance of plasma electrolytic oxidation coatings on magnesium alloy
    Zhuang, Junjie
    Song, Renguo
    Xiang, Nan
    Lu, Junpeng
    Xiong, Ying
    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2017, 108 (09) : 758 - 766
  • [29] Evolution processes of the corrosion behavior and structural characteristics of plasma electrolytic oxidation coatings on AZ31 magnesium alloy
    Chen, Dong
    Wang, Ruiqiang
    Huang, Zhiquan
    Wu, Yekang
    Zhang, Yi
    Wu, Guorui
    Li, Dalong
    Guo, Changhong
    Jiang, Guirong
    Yu, Shengxue
    Shen, Dejiu
    Nash, Philip
    APPLIED SURFACE SCIENCE, 2018, 434 : 326 - 335
  • [30] Effects of PEG6000 on microstructure and corrosion resistance of plasma electrolytic oxidation coatings on magnesium alloy under different voltages
    An, L. Y.
    Chang, C. G.
    Meng, L. C.
    Peng, J. H.
    Yuan, J.
    Wang, Z.
    Kang, D. S.
    DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 2022, 17 (01) : 89 - 107
12345