Laboratory Inspection Services:
Blue Etch Anodize Methods
NDT Inspection Method Applicability
Blue Etch Anodizing (BEA) is a highly sensitive nondestructive testing (NDT) technique to detect surface discontinuities such as laps, cracks, material segregations, heat-treating imperfections, and abnormalities caused by machining. Under normal conditions, surface defects as small as .015" can be reliably
detected.
BEA is specifically used to detect discontinuities in titanium materials such as those involved in the manufacture of critical rotating parts for the aircraft and power generation industries. One of the most critical applications of BEA is to detect material segregations known as "Hard Alpha Inclusions" (HAI), and/or High Aluminum Defects (HAD's).
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Blades immediately after anodizing
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| MTC Blue Etch Anodize Laboratory Inspection
Service
At Metals Testing Company, we have a complete in-house capability of equipment, chemicals, procedures, qualified personnel, waste treatment, environmental related permits, and industry certifications to accomplish high quality BEA related inspections. With regard to aircraft engine manufacturers, MTC is one of the few approved independent laboratories in the world that is certified to perform BEA inspections. Please see our BEA literature for additional details of this technology.
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