Effects of Different Pulses on Film Formation on Micro-arc Oxidation Magnesium Alloy

Yao Jiantao; Chen Ming; Ma Yuezhou; Zheng Hao; Xu Wenbu

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Effects of Different Pulses on Film Formation on Micro-arc Oxidation Magnesium Alloy
- role： First author 第一作者
- Affiliation：
  State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China
Yao Jiantao
1 ,
- Affiliation：
  State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China
Chen Ming
1 ,
- Affiliation：
  State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China
Ma Yuezhou
1 ,
- Affiliation：
  State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China
Zheng Hao
1 ,
- Affiliation：
  State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China
Xu Wenbu
1
Vol. 30, Issue 6, Pages: 570-572(2010)
Published： 2010 ，
DOI：

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[1]姚建洮,陈明,马跃洲,郑浩,许文卜.脉冲形式对镁合金微弧氧化成膜的影响[J].特种铸造及有色合金,2010,30(06):570-572+597.

Yao Jiantao, Chen Ming, Ma Yuezhou, et al. Effects of Different Pulses on Film Formation on Micro-arc Oxidation Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 30(6):570-572(2010)
[1]姚建洮,陈明,马跃洲,郑浩,许文卜.脉冲形式对镁合金微弧氧化成膜的影响[J].特种铸造及有色合金,2010,30(06):570-572+597. DOI：

Yao Jiantao, Chen Ming, Ma Yuezhou, et al. Effects of Different Pulses on Film Formation on Micro-arc Oxidation Magnesium Alloy. [J]. Special Casting & Nonferrous Alloys 30(6):570-572(2010) DOI：

Abstract

Micro-arc oxidation experiments were carried out for AZ91D magnesium alloy by unipolar,ambipolar pulse and discharge circuit to remove output modes to investigate wave types of load voltage and current under different pulse types for micro-arc oxidation and effects on MAO process and efficiency for AZ91D alloy. The results reveal that capacitive load characteristics can be cancelled by using discharge circuit pulse mode,which makes the MAO process stable and arc point uniform,surface of film smooth and gas hole heterogeneous and compact,effectively improving the film efficiency.

transl

Keywords

Magnesium Alloy; Micro-arc Oxidation; Pulse Types

transl

摘要

在单极性脉冲、双极性脉冲、带放电回路的脉冲形式下分别对AZ91D镁合金进行微弧氧化试验。研究不同脉冲形式下微弧氧化的负载电压及电流波形

以及脉冲形式对铸造AZ91D镁合金微弧氧化过程及效率的影响。结果表明

带放电回路的脉冲形式能消除负载电容的影响。其微弧氧化过程稳定

弧点均匀

膜层表面光滑

孔洞均匀、密布

有效提高了成膜效率。

Abstract

Micro-arc oxidation experiments were carried out for AZ91D magnesium alloy by unipolar

ambipolar pulse and discharge circuit to remove output modes to investigate wave types of load voltage and current under different pulse types for micro-arc oxidation and effects on MAO process and efficiency for AZ91D alloy. The results reveal that capacitive load characteristics can be cancelled by using discharge circuit pulse mode

which makes the MAO process stable and arc point uniform

surface of film smooth and gas hole heterogeneous and compact

effectively improving the film efficiency.

关键词

镁合金微弧氧化脉冲形式

Keywords

Magnesium AlloyMicro-arc OxidationPulse Types

references

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The research on technical parameters optimization of AZ91D Magnesium Alloy Micro-arc Oxidation

Optimization of Electrolyte Formula of Micro-arc Oxidation for Mg-9Gd-3Y-0.6Zn-0.5Zr Magnesium Alloy in Aluminate Solution

Effects of NaVO₃ on Micro-arc Oxidation Coatings on AZ91D Magnesium Alloys

Corrosion Resistance of AZ91D Magnesium Alloy under Different Treatment Processes

Investigation on Pneumatic Quantitive Conveying of Liquid Magnesium

Related Author

YAN Feng-yun1 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室

FAN Song-yan2 兰州理工大学有色金属合金及加工教育部重点实验室

QIANG Xu-dong1 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室

ZHANG Wen-qun2 兰州理工大学有色金属合金及加工教育部重点实验室

Wang Ping 西安工业大学材料与化工学院

Li Jianping 西安工业大学材料与化工学院

Ma Qun 西安工业大学材料与化工学院

Wu Zhaogang 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室

Related Institution

State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology,Lanzhou 7300502. Key Laboratory of Non-ferrous Metal Alloys and Processing, The Ministry of Education,Lanzhou University of Technology

兰州理工大学有色金属合金及加工教育部重点实验室

Department of Materials and Chemical Engineering, Xi’an Technological University

School of Mechanical and Power Engineering， Shenyang University of Chemical Technology

School of Mechanical Engineering， Northwestern Polytechnical University

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