corrosion failure analysis and corrosion prevention services
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Metallurgical Consultants
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Failure Mechanisms
Fatigue
Creep & stress rupture
Corrosion
Stress corrosion cracking
Ductile and brittle fractures
Wear
Hydrogen embrittlement
Liquid metal embrittlementWelding
MIG
TIG
Stick
SAWCorrosion
Corrosion failures
Stress corrosion cracking
Uniform corrosion
Galvanic corrosion
Pitting corrosion
Crevice corrosion
Corrosion Failures
Corrosion is
chemically induced
damage to a material
that results in
deterioration of the
material and its
properties. This may
result in failure of the
component. Several
factors should be
considered during a
failure analysis to
determine the affect
corrosion played in a
failure. Examples are
listed below:
Type of
corrosion
Corrosion rate
The extent of
the corrosion
Interaction
between
corrosion and
other failure
mechanisms
Corrosion is is a
normal, natural
process. Corrosion
can seldom be totally
prevented, but it can
be minimized or
controlled by proper
choice of material,
design, coatings, and
rosion Failure Analysis and Corrosion Prevention Services http://www.materialsengineer.com/CA-corrosion.htm
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Marine corrosionTopics
Explosions
Castings
BoilersHeat Exchangers
Pressure Vessels
Pipelines
Lifting Equipment
Fasteners
Gears
Bearings
Shafts
Residual StressesChemical Processing
Pulp and Paper
Food Processing
Automotive
ShipsAlloys
SteelStainless Steel
Aluminum
Copper
Titanium
occasionally by
changing the
environment. Various
types of metallic and
nonmetallic coatings
are regularly used to
protect metal partsfrom corrosion.
Stress corrosion cracking necessitates a tensile stress,
which may be caused by residual stresses, and a
specific environment to cause progressive fracture of a
metal. Aluminum and stainless steel are well known for
stress corrosion cracking problems. However, all metals
are susceptible to stress corrosion cracking in the right
environment.
Laboratory corrosion testing is frequently used in analysis but isdifficult to correlate with actual service conditions. Variations inservice conditions are sometimes difficult to duplicate inlaboratory testing
Corrosion Failures Analysis
Identification of the metal or metals, environment the
metal was subjected to, foreign matter and/or surfacelayer of the metal is beneficial in failure determination.
Examples of some common types of corrosion are listed
below:
Uniform corrosion
Pitting corrosion
Intergranular corrosion
Crevice corrosion
Galvanic corrosionStress corrosion cracking
Not all corrosion failures need a comprehensive failure
analysis. At times a preliminary examination will provide
enough information to show a simple analysis is
adequate.
Contact Information
Telephone
rosion Failure Analysis and Corrosion Prevention Services http://www.materialsengineer.com/CA-corrosion.htm
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407-880-4945 ----------- Consulting assistance is
only available for customers
FAX
Postal address
AMC
380 S. State Road 434
Suite 1004 - #303Altamonte Springs, FL 32714
Electronic mail
General Information:
Customer Support:
Webmaster: [email protected]
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Send mail to [email protected] questions or comments about this web site.Copyright 1999 Metallurgical ConsultantsLast modified: September 11, 2007
rosion Failure Analysis and Corrosion Prevention Services http://www.materialsengineer.com/CA-corrosion.htm
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