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2. Chromate conversion coating - Wikipedia

   en.wikipedia.org/wiki/Chromate_conversion_coating

   The formula was meant to be dissolved in water at the concentration of 9.0 g/L, giving a bath with pH = 1.5. It yielded a light gold color after 1 min, and a golden-brown film after 3 min. The average thickness ranged between 200 and 1000 nm. [6] Iridite 14-2 is a chromate conversion bath for aluminum.

3. Rustproofing - Wikipedia

   en.wikipedia.org/wiki/Rustproofing

   Structural rust (affecting structural components which must withstand considerable forces) should be cut back to sound metal and new metal welded in, or the affected part should be completely replaced. Wax may not penetrate spot-welded seams or thick rust effectively. A thinner (less viscous) mineral-oil-based anti-rust product followed by anti ...

4. Salt spray test - Wikipedia

   en.wikipedia.org/wiki/Salt_spray_test

   The salt spray test (or salt fog test) is a standardized and popular corrosion test method, used to check corrosion resistance of materials and surface coatings.Usually, the materials to be tested are metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal.

5. Gold–aluminium intermetallic - Wikipedia

   en.wikipedia.org/wiki/Gold–aluminium_intermetallic

   (1) Gold wire (2) Purple plague (3) Copper substrate (4) Gap eroded by wire-bond (5) Aluminium contact Gold–aluminium phase diagram. Gold–aluminium intermetallic is a type of intermetallic compound of gold and aluminium that usually forms at contacts between the two metals. Gold–aluminium intermetallic have different properties from the ...

6. Primer (paint) - Wikipedia

   en.wikipedia.org/wiki/Primer_(paint)

   Once water seeps through to the bare metal, oxidation will begin (plain steel will simply rust). [5] Metal primers might contain additional materials to protect against corrosion, such as sacrificial zinc. Primers are used on metal hydroxides/oxides to improve the surface condition and to encourage bonding. Without a primer, paint applied to ...

7. Corrosion inhibitor - Wikipedia

   en.wikipedia.org/wiki/Corrosion_inhibitor

   A corrosion inhibitor or anti-corrosive is a chemical compound added to a liquid or gas to decrease the corrosion rate of a metal that comes into contact with the fluid. [1] The effectiveness of a corrosion inhibitor depends on fluid composition and dynamics.

8. Metallizing - Wikipedia

   en.wikipedia.org/wiki/Metallizing

   Metals applied in such a manner provide corrosion protection to steel for decades longer than paint alone. Zinc and aluminum are the most commonly used materials for metallizing steel structures. [1] Cold sprayable metal technology is a metallizing process that seamlessly applies cold sprayable or putty able metal to almost any surface. The ...

9. Chemical coloring of metals - Wikipedia

   en.wikipedia.org/wiki/Chemical_coloring_of_metals

   Chemical coloring of metals is the process of changing the color of metal surfaces with different chemical solutions. The chemical coloring of metals can be split into three types: electroplating – coating the metal surface with another metal using electrolysis. patination – chemically reacting the metal surface to form a colored oxide or ...