Question
In: Mechanical Engineering
Which type of corrosion cell causes iron or steel to corrode (and create rust) when a...
Which type of corrosion cell causes iron or steel to corrode (and create rust) when a droplet of water is in contact with the surface? Question 10 options: a) Composition (dissimilar metals) cell b) Stress cell c) Concentration cell
Solutions
Expert Solution
The type of corrosion cell that causes iron or steel to corrode (and create rust) when a droplet of water is in contact with the surface is Concentration cell.
The corrosion of iron or steel is an electrochemical process. When droplet of water comes in contact with the surface , the surface tends to become voltaic cell and starts to oxidise. Concentration cell involving oxygen can initiate pitting through generation of cathodic and anodic areas. Differential aeration (oxygen concentration cell) and ion concentration (salt concentration) cells create dissimilar polarities (anodic and cathodic areas). The above question is an example for this .
samet mamat answered 2 years agoRelated Solutions
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.5 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 25 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 25 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x ̄ = 52.7. According to the normal probability plot, we can
observe a linear pattern using the sample we have. The conduits
were manufactured with the specification that true average
penetration be at most 50 mils. They will...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x = 52.5 and a sample standard deviation of s =
4.7. The conduits were manufactured with the specification that
true average penetration be at most 50 mils. They will be used
unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x 5 52.7 and a sample standard deviation of s 5 4.8. The conduits
were manufactured with the specification that true average
penetration be at most 50 mils. They will be used unless it can be
demonstrated conclusively that...
Problem 3. To obtain information on the corrosion-resistance properties of a certain type of steel conduit,...
Problem 3. To obtain information on the corrosion-resistance
properties of a certain type of steel conduit, 25 specimens are
buried in soil for a 2-year period. The maximum penetration (in
mils) for each specimen is then measured, yielding the following
values
50.2 50.7 50.5 51.5 48.9
46.6 48.3 50.2 50.5 51.6
52.9 53.3 53.4 48.5 53.4
52.7 52.1 51.3 49.9 50.2
51.8 51.9 51.0 52.2 51.8
The conduits were manufactured with the specification that true
average penetration be at most...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x = 52.4 and a sample standard deviation of s =
4.5. The conduits were manufactured with the specification that
true average penetration be at most 50 mils. They will be used
unless it can be demonstrated conclusively that...
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To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period.
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x̅ = 52.8 and a sample standard deviation of s = 4.9. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period.
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 53.2 and a sample standard deviation of s = 4.8. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
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