7.2 Factors Affecting Corrosion
Cause of corrosion:
many factors affect type, speed, cause, and seriousness of metal corrosion. Though some of these factors can be controlled and some can not.
The environmental conditions under which an aircraft is maintained and operated greatly affect the corrosion characteristics. In a predominately marine environment with exposure to sea water and salt air, the moisture-laden air is considerably more detrimental to an aircraft than it would be if all operations were conducted in a dry climate.
Temperature considerations are important as speed of electrochemical attack is in creased in a hot, moist climate.
Size and Type of Metal:
It is well known that some metals will corrode faster that others but it is a less known fact that variations in size and shape of metal can indirectly affect the corrosion resistance. Thick structural sections are more susceptible to corrosive attack that thin sections and the reason is that variations in physical characteristics are greater. When large pieces are machined or chemically milled after the heat treatment, the thinner areas will have different physical characteristics than the thicker areas and thus variations.
From the corrosion
control standpoint, the best approach is to recognize critical nature of integrity and strength of major structural parts and to maintain permanent protection over such areas at all times to prevent the onset of deterioration.
Among the controllable factors affect the onset and spread of corrosive attack is foreign material with adheres to the metal surfaces. Such foreign material includes the following:
l Soil and atmosphere dust,
l Oil grease and engine exhaust residues,
l Salt water and salt moisture condensation,
l Spilled battery acids and caustic cleaning solution,
l Welding and brazing flux residues.
Email Based Assignment Help in Factors Affecting Corrosion
We are the leading online assignment help provider in chemical engineering and related subjects. Find answers to all of your doubts regarding Transport Phenomenons, Factors Affecting Corrosion and Transport Problem In One Dimension. Assignmenthelp.net provides homework, assignment help to the engineering students in college and university across the globe.
To Schedule a Chemical Engineering Factors Affecting Corrosion tutoring session click here
To submit Chemical Engineering Factors Affecting Corrosion assignment click here.
Following are some of the areas in Chemical Engineering Materials Of Construction which we provide help:
Chemical Engineering Assignment Help
Chemical Engineering Homework Help