Supporting corrosion control efforts across equipment lifecycles
Corrosion destroys equipment, decreasing readiness and reliability while causing
safety hazards and increasing maintenance and other ownership costs. The Department
of Defense (DoD) estimates corrosion costs the department over $23 billion annually.
In addition, the Army attributes more than 50 aircraft accidents and 12 fatalities
to corrosion since 1985.*
*Government Accountability Office, GAO-11-318SP, March 2011, page 186.
Why Work with CTC?
Concurrent Technologies Corporation (CTC) is working to support corrosion control
efforts across the equipment lifecycle—from design and materials selection through
operation and maintenance. Since 2000, CTC has been performing a wide variety of
corrosion services for government and commercial clients.
Whether you need to estimate component service life, compare materials performance,
or determine the condition of your materials, CTC can find the solution that’s right
We can collect and analyze data to characterize corrosion problems. We can then
test, evaluate, demonstrate, and validate the most appropriate and cost-effective
prevention and control solutions – saving you time and money.
CTC’s corrosion testing services include the following
equipment and capabilities:
- Programmable Auto-Technology 40 cu.ft. cyclic corrosion chamber, capable of more
than 50 different pre-programmed corrosion tests, including those specified in ASTM
B117, SAE J2334 and GM9540P.
- Two (2) Q-Panel Q-Sun accelerated weathering xenon
arc weatherometers that simulate the entire spectrum of sunlight with capabilities
of varying the irradiance, temperature, humidity, water spray, and exposure duration.
A Q-Panel QUV apparatus that simulates the ultraviolet (UV) portion of the sunlight
spectrum, in which the most damaging effects of sunlight to coatings exposed outdoors
- Gamry PCI4/300 potentiostat/galvanostat/zero resistance ammeter capable
of DC corrosion and AC electrochemical impedance spectroscopy (EIS) testing for
modeling corrosion behavior, and measuring corrosion rates, pitting potentials,
polarization resistance, and corrosion potential.
- Two portable flash thermography
nondestructive inspection (NDI) systems for assessment and evaluation of hidden
corrosion under paint, and damage/defects within composite structures. CTC also
has extensive experience with laboratory development and fabrication of NDI corrosion
reference standards for DoD engineering applications.
- Capability to design,
fabricate, and install custom test equipment and nonstandard test and analysis protocols
per client specifications.
CTC has been actively engaged in the evaluation and resolution of specific aluminum
sensitization issues on Navy ships since 2010. CTC has focused on the design, development,
demonstration, and transition of repair strategies and technologies that reduce
costs and improve readiness related to aluminum sensitization and subsequent stress
corrosion cracking. Our solutions envelop a multifaceted strategy that address the
aluminum sensitization issue from four standpoints:
- Mitigation for un-cracked sensitized aluminum
- Mitigation for cracked sensitized aluminum
- Prevention using coatings
- Prevention using new materials
Our technologies build upon demonstrated solutions, including (but not limited to)
friction stir welding, coatings, and reverse sensitization units (RSUs), that have
been identified as potential solutions by Navy stakeholders.