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corrosion theory
chapter 3
25
Aviation
12th Grade
02/05/2013

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Term
What is the corrosion theory state?
Definition
All metals will corrode
to some extent in a natural environment. When a metal
corrodes, the atoms lose electrons and become positively
charged
Term
Define and atom.
Definition
The smallest unit of an element, made
up of a positively charged nucleus surrounded by a
system of negatively charged electrons.
Term
Define and electron.
Definition
A negatively charged subatomic
particle. An electric current occurs when electrons are
forced to move through metal conductors.
Term
what is an ion?
Definition
An atom or group of atoms or molecules
which has acquired a net electric charge by gaining
(negative ion) or losing (positive ion) electrons
Term
Give an example of an electrolyte
Definition
salt water, rain water, acids, gases
Term
What is an anode?
Definition
corroding metal
Term
what is a cathode
Definition
material less likely to corrode
Term
which metal is most likely to corrode? magnesium or beryllium
Definition
magnesium
Term
A battery is an example of what kind of corrosion?
Definition
Galvanic corrosion
Term
which corrosion is probably the most command type of corrosion?
Definition
Uniform corrosion
Term
Exfoliation is an advanced form of what corrosion?
Definition
Intergranular corrosion
Term
Filiform corrosion is a form of what type of corrosion
Definition
crevice corrosion
Term
Aluminum alloy will corrode to form what appearance?
Definition
white to gray powder
Term
In case of conflict between the 01-1a-509 and another manual which manual takes precedence?
Definition
In the case of a conflict between this manual
and other Navy manuals, this manual shall take
precedence; however, maintenance activities shall
contact the appropriate Cognizant Field Activity (CFA)/
Fleet Support Team (FST) for immediate resolution of
the conflic
Term
what is the title of volume one of the 01-1a-509?
Definition
Corrosion Program and Corrosion Theory
Term
what is the title of volume two of the 01-1a-509?
Definition
Aircraft
Term
what is the title of volume three of the 01-1a-509?
Definition
Avionics and Electronics
Term
what is the title of volume four of the 01-1a-509?
Definition
Consumable Materials and Equipment
for Aircraft and Avionics
Term
what is the title of volume five of the 01-1a-509?
Definition
Consumable Materials and Equipment
for Avionics
Term
what are the two most important factors in the prevention of corrosion?
Definition
removal of electrolytes and the application of protective coatings.
Term
Give an example of a Noble metal.
Definition
gold, silver
Term
what is a Nobel metal?
Definition
A metal that do not loose electrons easily.
Term
What is a ferrous metal?
Definition
contains iron alloys
Term
define an active metal?
Definition
A metal ready to corrode or being corroded.
Term
Define alkaline?
Definition
having a PH of more than 7
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