Corrosion Properties of Supersaturated Magnesium Alloy Systems

Carsten Blawert; V. Heitmann; Wolfgang Dietzel; M. Störmer; Y. Bohne; Stephan Mändl; B. Rauschenbach

doi:10.4028/www.scientific.net/MSF.539-543.1679

Paper Titles

Superior Corrosion Resistance and Mechanical Properties of a Mg Alloy Recycled by Solid-State Process
p.1656

Effect of RE Elements and Ni Contents on the Microstructure and Mechanical Properties of Rapidly Solidified Mg Ribbons
p.1662

Mechanism of Crack Nucleation Analysed by In Situ Observation on Mg-Al-Zn Alloy
p.1669

The Influence of Rolling Parameters on Microstructure and Mechanical Properties of the As-Rolled AZ31 Magnesium Alloy Sheet
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Corrosion Properties of Supersaturated Magnesium Alloy Systems
p.1679

Mechanical Properties and Damping Behavior of Magnesium Alloys Processed by Equal Channel Angular Pressing
p.1685

Development of Conductive Anodic Oxidation Coatings on AZ91D Magnesium Alloy
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Effects of Tool Radius on Formability during Forging of AZ80 Magnesium Alloy Wheel
p.1696

Development of a High Strength Mg-Zn-Y-Zr Wrought Alloy
p.1701

HomeMaterials Science ForumMaterials Science Forum Vols. 539-543Corrosion Properties of Supersaturated Magnesium...

Corrosion Properties of Supersaturated Magnesium Alloy Systems

Abstract:

The range of applications for magnesium alloys is still limited due to their relatively poor corrosion behavior. In recent years, various new magnesium alloys were developed, some of them with improved corrosion properties, thus opening new fields of application. However, the number of alloying elements for the use in conventional cast processes is limited due to their interaction with liquid magnesium, other alloying elements or large differences in the melting temperatures. The possibilities for grain refinement by post-processing are also restricted. PVD techniques can help to produce supersaturated precipitation free and microcrystalline magnesium layers. Using ion beam and magnetron sputtering, binary or ternary Mg-Al, Mg-Ti and Mg-Sn alloy systems as well as standard alloys (AM50, AZ91 and AE42) were deposited on silicon and on magnesium substrates. The effect of the microstructure on the corrosion properties was studied by comparing as cast material and PVD coatings using potentiodynamic polarization, linear polarization resistance, and electrochemical impedance techniques.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

1679-1684

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.1679

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Online since:

March 2007

Authors:

Carsten Blawert, V. Heitmann, Wolfgang Dietzel, M. Störmer, Y. Bohne, Stephan Mändl, B. Rauschenbach

Keywords:

Corrosion, Magnesium, Mg-Al, Mg-Sn, Mg-Ti, PVD Coating, Sputtering

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