Commercial aircraft controlling corrosion

Section VII on Testing in Industries (S. Dean, Section Editor) provides an overview of corrosion testing unique to each industry and how these tests are used to address corrosion problems. Included are descriptions of environments encountered and materials used in specific industries. Test methods for corrosion control and evaluation are described along with appropriate stand2irds. Chapters in this section include automotive, commercial aircraft, military aircraft... 

Water plays a primary role in corrosion of the metal walls of tanks and pipes (17), and increases the tendency for high speed pumps to produce wear particles and to exhibit shortened life. Formation of corrosion products can be controlled by addition of corrosion inhibitors, a mandatory additive in military fuels. However, corrosion inhibitors may also degrade other fuel properties and adversely affect ground filtration equipment. Thus they are not generally acceptable in commercial fuels where rigorous attention is given to clean and dry fuels upon aircraft fueling. 

Initially, little or no attention was paid to corrosion and corrosion control of commercial and military airplanes. As the age of an aircraft exceeds 20 years of service life, corrosion becomes a major concern, thus bringing corrosion prevention and control issues to the forefront of design and manufacturing. For several years now, corrosion of military aircraft and other equipment has been an ongoing problem. Data provided by the US military indicate that corrosion is potentially the number one cost, which totals approximately 20 billion aimually." ... 

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