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Materials Science
Explore questions in the Materials Science category that you can ask Spark.E!
- Which of the following may not be detectable even by careful visual inspection of the surface of aluminum alloy parts or structures?
- Galvanizing protects steel by covering it with a layer of ____.
- An electrochemical process in which a metal is transformed into a chemical compound (returns to it's natural state) that generally has little strength is called
- Which of the following should not be used to clean acrylic plastics and rubber
- Which of these materials is the most anodic?
- Welding flux on aluminum alloy may be removed by washing it with (______).
- The appearance of a powder on the surface of a piece of aluminum alloy that has been treated with Alodine is an indication of improper application. How do you correct this?
- Stiff [______] brushes can be used to remove corrosion from magnesium surfaces.
- Florida weather is worse than Oklahoma
- We do not use wire brushes on (___) because they cause minute scratches that can produce stress and weaken the part.
- After the corrosion has been mechanically removed from an aluminum alloy, the surface should be neutralized by treating it with a 5% solution of (____).
- Clad aluminum is protected from corrosion by a layer of (____) on the aluminum alloy core.
- Welded steel tube engine mounts are protected from internal corrosion by coating the inside of the tubing with hot (___).
- Before joining dissimilar metals they are prepared by spraying two coats of (____) primer and placing a strip of (_____) tape between the surface before they are assembled.
- Magnesium (___) naturally form a protective oxide coating on it surface.
- Name 3 types of primers that may be used to protect a metal surface from corrosion and provide a good bond for the topcoat.
- Filiform corrosion usually forms under what paint system?
- Microbial growth in the fuel tanks of a turbine power aircraft may cause corrosion by holding (___) against the aluminum alloy structure
- A spot weld seam may be inspected for corrosion by placing a [______] over the seam and checking it for any indication of bulging between the spots
- Nickel- and Chrome- plating protect a steel part from corrosion by preventing ____ and ____ from reaching the surface of the metal.