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METALLURGICAL CORROSION EVALUATION

IMR-Metallurgy-LabComplete Visual and Metallurgical analysis

IMR’s experienced metallurgists perform an initial visual inspection to determine what further equipment-aided examinations are necessary. The purpose is to evaluate localized corrosion like pitting or exfoliation. If needed, an optical or scanning electron microscope is utilized to reveal elemental properties such as X-ray diffraction (XRD) are useful methods to evaluate surface corrosion more accurately.

When metallurgists evaluate the pitting corrosion of samples, a few key evaluations are prioritized. The first- determining the density of pits (number of pits in a specific surface area) and the second: pitting factor (ratio of the depth of deepest pit divided by the value of thickness loss due to uniform corrosion). Utilizing either a contour gauge or pit gauge can achieve a profile contour.
 

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Related Corrosion Testing Methods

Dezincification Australian Std
Electrochemical Corrosion Testing
Environmental Stress Cracking (ESC)
Evaluation of Duplex Stainless Steels
Formicary (Ant’s Nest) Corrosion
Galvanic Corrosion of Medical Implants
General and Pitting Corrosion Testing
Heat & Fluid Aging
Laboratory Immersion Corrosion Testing
Mercurous Nitrate Testing
Moist Ammonia Vapor Testing
Passivation Testing of Medical Components
Potentiodynamic Corrosion
Susceptibility to Stress CorrosionTesting of Copper Alloys
Sensitization Testing
Slow Strain Rate Testing 
Stress-Corrosion of Titanium Alloys
Susceptibility to Stress Corrosion Cracking (SCC)
U-Bend Stress Corrosion Sample Preparation

 

ASTM Testing Methods

AS 2345
ASTM A 262
ASTM B154
ASTM B858
ASTM F3044
ASTM F945
ASTM G30
ASTM G31
ASTM G36
ASTM G38
ASTM G46
ASTM G47
ASTM G48
ASTM G123
ASTM G129
ISO 6509-1
ISO 12614-2

 

RELEVANT ACCREDITATIONS

Click here for a complete list of accreditations and certifications for all IMR Test Labs locations.