Paper Title:
Growth Characteristics, Microstructure and Corrosion Resistance of Micro-Arc Oxidation Coatings Fabricated on ZK60 Mg Alloy under Two Steps Voltage-Increasing Mode
  Abstract

A concept of two steps voltage increasing mode derived from constant voltage mode was developed to fabricate micro-arc oxidation (MAO) coatings on ZK60 Mg alloy. Growth characteristic, microstructure and corrosion resistance of coatings were investigated and compared with the constant voltage mode. An additional and distinguishing stage is found and regarded as a coating regrowth stage playing an important role on coating thickness. Effects of increase value of voltage were also investigated. It shows that rougher and thicker coating is formed for higher value of voltage. And it is more likely to induce destructive arc discharge for excessive increase value, thus leads to a looser and less corrosion resistant coating. The coating formed under two steps voltage-increasing mode of 280-360V exhibits the best corrosion resistance.

  Info
Periodical
Chapter
Chapter 1: Surface Engineering/Coatings
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
101-105
DOI
10.4028/www.scientific.net/AMR.337.101
Citation
S. Lu, L. Tang, X. Z. Jiang, Z. X. Wang, J. Chen, "Growth Characteristics, Microstructure and Corrosion Resistance of Micro-Arc Oxidation Coatings Fabricated on ZK60 Mg Alloy under Two Steps Voltage-Increasing Mode", Advanced Materials Research, Vol. 337, pp. 101-105, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Shahin Khameneh Asl, Mohammad Reza Saghi Beyragh, Mahdi Ghassemi Kakroudi
Abstract:Interest in nanomaterials has increased in recent years. This is due to the potential of size reduction to nanometric scale to provide...
13
Authors: Bing Ying Wang, Zhen Tong Sun
Abstract:Four different metal coatings of pure aluminum, aluminum zinc alloy, titanium, aluminum Titanium were prepared on the surface of X80 pipeline...
533
Authors: Ping Yi Guo, Ning Wang, Peng Fan
Chapter 1: Traditional Building Materials
Abstract:Ceramic oxide coatings were produced on pure titanium by plasma electrolytic oxidation in different electrolytes. The variation of coating...
596
Authors: Shi Gang Xin, Jun Le, Li Xin Song
Abstract:This paper studies the influence of current frequency on the micro-arc oxidation (MAO) process, microstructrue and the properties of the...
76
Authors: Shun Qi Zheng, Xiao Jing Li, Li Ping Zhu, Yun Chen, Jian Min Luo
Chapter 1: Alloy and Nanometer Materials
Abstract:Micro-arc oxidation (MAO) coatings were synthesized on MB3 magnesium alloy substrate. Two different electrolyte (Ⅰ) and electrolyte (Ⅱ) were...
54