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“Corrosion professionals are increasingly using risk principles
to optimise corrosion management.”
ity to assess the importance of all threats
and prioritise activities to mitigate them.
On the other hand, asset managers tend to
understand the risk-optimisation process,
but lack the ability to identify and mitigate
specific corrosion threats and assess the
probability of failure,” he elaborates.
The communication gap is being
addressed in two ways. The first is through
the development of corrosion management
plans, codes and standards. To meet
this need, NACE has developed a new corrosion
management standard practice for
pipelines that can be understood by those
both inside and outside the corrosion profession.
A similar plan for highway bridges
is under way.
The second way is to ask corrosion
professionals to put their technology into
a decision-making context, such as a riskbased
approach.
“After all, asset managers are not inclined
to engage in the study of corrosion science,”
says Dr Moghissi.
DIFFICULT ROLE
The corrosion professional needs the ability
to better quantify the return-on-investment
for corrosion-mitigation expenses, for
instance in terms of maintenance optimisation.
The existing role of the corrosion
professional is difficult because his/her
technical recommendations result in an
expense with a difficult to measure
benefit. As an example of this, Dr Moghissi
mentions the fact that nothing happens
when the structure does not degrade.
“By monetising the benefit in terms of
reduced risk, the corrosion professional
allows the asset manager to make decisions
in a familiar context, and he or she can
prioritise expenses and risks across the
entire asset,” says Dr Moghissi.
no 01 2012 – 63