ION VAPOR DEPOSITION (IVD) OF ALUMINUM
features:
Non-toxic, non-hazardous, non-polluting process replacement for cadmium plating. Suitable for a variety of substrates.
benefits:
Increases corrosion-resistance. Raises useful operating temperature. Provides galvanic compatibility with aluminum structures.
substrates:
Steel
Alloys
Titanium
Aluminum
Magnesium

Ion Vapor Deposition (IVD) of aluminum is a vacuum plating process which deposits pure aluminum on nearly any metal. The process was originally developed by McDonnell Douglas Corp. as a replacement for cadmium plating on steel. The important advantages of this coating over cadmium are that it is non-toxic, non-hazardous and safe to apply. This assures that the user has an environmentally safe coating. Moreover, because no pollution or waste disposal problems result from use of the process, sources for the coating are free from restrictive and costly pollution control requirements.

There are as many reasons for using IVD aluminum as there are combinations of substrates and operating environments. The following are the most common:

IVD Aluminum on Steel: This process provides excellent "sacrificial" corrosion resistance with no hydrogen embrittlement. A .001-.002-inch coating averages 7500 hours in 5% neutral salt. Other benefits include a useful operating temperature up to 925°F and galvanic compatibility with aluminum structures.

IVD Aluminum on Heat and Corrosion Resistant Alloys: Provides the same benefits as with steel, plus oxidation resistance at high temperature-925°F, as deposited and significantly higher after high-temperature diffusion. The coating may be deposited directly on the substrate without special preparation such as nickel strike.

IVD Aluminum on Titanium: Provides the same benefits as with steel, plus the coating can be anodized or hard anodized to improve the wear-resistance, low absorptance-high emissivity, dielectric, color and all other properties of anodic coatings on aluminum. The coating retards titanium combustion. And it permits painting and adhesive bonding using the same techniques as with aluminum.

IVD Aluminum on Aluminum: Adds corrosion resistance to high strength aluminum alloys without sacrificing fatigue resistance, as will occur with anodizing. Allows use of casting (A-380, etc.) and microcrystalline alloys in applications normally restricted to wrought materials. Also provides corrosion resistance in applications where electrical continuity or bond is required. This eliminates "jumper" connections.

IVD Aluminum on Magnesium: May replace anodic and conversion coatings as a pre-treatment for paint or solid film lubricant application. Useful in overhaul situations where magnesium parts are assembled with other materials.


Titanium Finishing Company
248 Main St., P.O. Box 22
East Greenville, PA 18041
Telephone: (215) 679-4181
Facsimile: (215) 679-2399
E-mail:
titaniumfinishing@comcast.net