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Corrosion Finals > Coatings > Flashcards

Coatings Flashcards

1
Q

applied to a surface to protect the substrate from
corrosion

A

COATINGS

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2
Q

thin layers of materials that are applied to a metal surface to
protect it from corrosion.

A

COATINGS

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3
Q

materials used in coating

A

polymers, ceramic, and metal alloys

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4
Q

TYPES OF
COATINGS

A

metallic and organic

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5
Q

made of metal applied to surface of another metal to provide protection
against corrosion

A

METALLIC COATING

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6
Q

METALLIC COATING processes

A

dipping, electroplating, spraying,
cementation, and diffusion

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7
Q

a layer that changes the surface
properties of the
metal being applied

A

METALLIC COATING

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8
Q

a layer that changes the surface
properties of the workpiece to those of the
metal being applied

A

METALLIC COATING

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9
Q
A
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10
Q

Corrosion-resistant to a wide range of chemical environments such as: the
atmosphere, ammonia, coal gas, fluorine, hydrogen peroxide, mercury, etc.

A

Nickel

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11
Q

Nickel Usually prepared by

A

electroplating

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12
Q

Nickel Plated either directly on steel or sometimes over an

A

intermediate coating of copper

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13
Q

tanks, pipings, and
valves

A

nickel

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14
Q

unique properties like corrosion
resistance, malleability, and low melting
poin

A

lead

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15
Q

Lead Usually formed by either

A

hot dipping or
by electrodeposition

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16
Q

construction
industry for applications such as
waterproofing and roofing.

A

Lead

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17
Q

enhance the corrosion resistance of iron
castings to sulfuric acid

A

Lead and lead-tin coatings

18
Q

Excellent resistance to both atmospheric and aqueous corrosion.

A

Zinc

19
Q

inexpensive compared to other corrosion prevention

A

Zinc

20
Q

Zinc also called

A

galvanized coatings

21
Q

Zinc methods

A

hot dipped or electroplated

22
Q

other words for Electrogalvanized

A

electroplated zinc coating

23
Q

bolts, screws, and
wire products

A

zinc

24
Q

very specific substrate metals
(e.g., iron, aluminum, and steel)

A

Cadmium

25
Q

Superior protection against corrosion
in alkaline and marine environments

A

Cadmium

26
Q

methods used in cadmium

A

electrodeposition

27
Q

More expensive than zinc, but retains
a bright metallic appearance longer,

A

Cadmium

28
Q

in low to moderate corrosive
environment where they can provide
long-term protection

A

Tin

29
Q

do not corrode in soft
waters.

A

tin

30
Q

Widely used in the food packaging
industry to provide a protective
barrier

A

Tin

31
Q

Made from various organic materials

A

ORGANIC COATINGS

32
Q

applied to surfaces in liquid form

A

ORGANIC COATINGS

33
Q

These coatings are based on carbon
containing materials

A

ORGANIC COATINGS

34
Q

offer superior
resistance to abrasion,
turbulence, harsh chemicals, and
severe temperatures

A

Epoxy

35
Q

used in metal
finishing to protect metal surfaces
from corrosion and wear

A

Epoxy

36
Q

useful, for example, to seal
leaks temporarily in ferrous or
nonferrous piping

A

Epoxy

37
Q

coating used for their resistance to
abrasion, chemical exposure, and
weathering

A

Polyester

38
Q

used for their transparency, color retention,
and resistance to UV light.

A

Acrylic

39
Q

water-resistant, making them a good
choice for applications where protection
against water and moisture

A

Acrylic

40
Q

easy to apply, with many
formulations available in spray-on or brush-on
forms

A

Acrylic

41
Q

polyester method

A

spray or electrostatic deposition

42
Q
A

Corrosion Finals (2 decks)

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