Page 21 - Corrosion Engineering Principles and Practice
P. 21

4   C h a p t e r   1                               T h e   S t u d y   o f   C o r r o s i o n    5


                         That the old, largely hand-worked metal of about 30 years ago is
                      superior in rust-resisting quality to the usual modern steel and iron is
                      attested by the recorded evidence of a large number of observers.

                      On Paints and Corrosion Inhibitive Pigments
                      The many theories which have attempted to explain the rusting of
                      iron  during  the  last  century  have  stimulated  a  large  amount  of
                      original research on the relation of various pigments to the corrosion
                      problems.  In  the  course  of  the  investigations  undertaken,  the
                      subject  of  protective  coatings  for  iron  and  steel  was  naturally
                      brought  into  prominence  and  received  a  considerable  amount
                      of attention.
                         The  study  of  protective  coatings  for  iron  has  led  many  paint
                      manufacturers, as well as scientific investigators, to make closer studies
                      of  the  causes  of  corrosion.  It  is  evident  that  the  electrochemical
                      explanation of corrosion must have a direct bearing on paint problems.


                 1.3  Needs for Corrosion Education
                      The specific needs for corrosion education vary greatly with the level
                      of education required, the functions expected of the personnel, and of
                      course  the  applications  where  corrosion  is  a  concern.  In  order  to
                      indicate  the  suitability  of  the  various  teaching  aids  and  texts  for
                      particular  types  of  training,  four  categories  of  corrosion  personnel
                      based  upon  their  particular  activities  have  been  identified  by  the
                      European Federation of Corrosion (EFC).

                          •  Group A: corrosion scientists and engineers
                          •  Group B: technologists
                          •  Group C: technicians
                          •  Group D: operatives
                         In  real-world  situations,  all  corrosion  personnel  would,  of
                      course, work toward the solution of often very specific corrosion
                      problems and there will be considerable overlap between the tasks
                      assigned  to  individuals.  Any  person  working  primarily  in  one
                      group will probably have interests and activities in other groups.
                      The  distinction  between  these  groups  is  therefore  more  one  of
                      perspective, rather than level of skills. When designing a corrosion
                      training  course  or  program,  it  should  be  realized  that  while  the
                      training  material  should  be  broadly  based  and  cover  all  major
                      aspects of corrosion and protection, there will inevitably be some
                      emphasis put on the lecturer’s field of interest and expertise. There
                      could also be some specific requirements depending on the trainee’s
                      type of work, for example, aeronautical, automotive, oil and gas,
                      and medical.
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