Go to GlobalSpec.com Home
Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

Magnesium Anodizing

From METALAST International, Inc.
 

 
Magnesium anodizing can be used to improve the corrosion resistance, wear resistance, and hardness of the base magnesium metal. In addition, anodizing magnesium improves paint adhesion. This bulletin provides general information on magnesium anodizing, facility requirements, and the characteristics of the anodic coating. Magnesium is the lightest structural metal in the world. This grayish-white metal has a specific gravity of 1.74, approximately 2/3 and 1/4 of that of aluminum and steel, respectively. Magnesium is now being used for applications where light weight and high strength are important, such as in aircraft guided missiles, electronic equipment, sporting goods, and particularly automobiles. Fiat Auto, for instance, has succeeded in using about 8 kg of magnesium on its Alfa Romeo 156 model at a production rate of more than 100,000 cars/year. This trend of using more magnesium in cars to decrease weight and improve efficiency is expected to continue. However, magnesium has very poor corrosion resistance because no passivation film naturally forms on its surface, as it does on aluminum. Several surface treatments have been developed to enhance the corrosion resistance of magnesium alloys, including chromating, phosphating, and anodizing.
Product Announcements
All Metals & Forge - Magnesium Alloys
Magnesium is the lightest structural metal available a combination of low density and good mechanical strength, resulting in a high strength-to-weight ratio. Magnesium components are generally used in... (read more)
Tanfel - Metal/Thermal Management
Tanfel provides a wide range of high quality metal stamping, die casting, aluminum extrusion, heat sinks and CNC machining services. (read more)
Tanfel - Cost Reduction, Service & Quality - ISO-Certified.
Tanfel provides a wide range of high quality Aluminum Extrusion and heat sinks, Die Casting, CNC Machining Services, Metal Stamping and more in our ISO-Certified facility. Preserve the quality of your... (read more)
Tanfel - Cost Reduction, Service & Quality. Have them ALL.
Tanfel provides a wide range of high quality Metal Stamping, Die Casting, Aluminum Extrusion, Heat Sinks and CNC Machining Services. Our high quality, ISO-certified facility is an expert in... (read more)
DiFruscia Industries, Inc. - Anodizing
Anodizing entails the immersion of an aluminum part in an electrolyte where an electric current is passed through the part. The surface is converted to aluminum oxide - one of the hardest substances... (read more)
 
Topics of Interest
Overview Considering their location on the periodic table of elements, one would think that both magnesium and beryllium would play major roles as aerospace structural materials. However, both of... (Read More)
Anodizing is a process for finishing aluminum alloys that uses the electrolytic oxidation of the aluminum surface to produce a protective oxide coating. The anodic coating consists of hydrated... (Read More)
Fused silica is a compound of silicon and oxygen. For dielectric applications, silicates are modified with magnesium and/or aluminum to provide sufficient dielectric properties. Cordierite and... (Read More)
Successful part design with melt-processable plastic materials can be accomplished in a parallel design process having three stages-preliminary, engineering and manufacturing. Design engineers are... (Read More)
As an effort to understand the details of the METALAST anodizing process in terms of its advantages over the traditional anodizing process and the mechanisms of anodizing under the constant current... (Read More)