Corrosion in Boilers & Water Circulation Systems with Special Reference to Marine Installations

Several different types of corrosion may be found to
occur in boilers, especially - marine boilers, in
addition to ordinary fatigue effects. There may be a
more or less uniform and widespread attack upon all
the metal surfaces of the boiler ; secondly , various forms of pitting are met with ;caustic embrittlement,
or caustic cracking , may occur ; and lastly there
will almost certainly be external corrosion on the
fire side of the generating system. Of these, pitting
is probably the commonest internal form of corrosion.