Corrosion Policy Decision Making. Группа авторов

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      1 What corrosion management (CM) really means;

      2 What to expect from CM.

Schematic illustration of corrosion engineering and its relation to other engineering disciplines (right), essential features and components of corrosion engineering (left).

      All of these applications have their own codes and standards. When we talk about corrosion treatment, we know that we are talking about five strategies to deal with corrosion (physical measures, chemical measures, electrical measures, mechanical measures, and design/material selection measures). Corrosion monitoring is to address methods and technologies by which severity of corrosion within its course of action is studied by codes and measures pertaining to corrosion monitoring. All of the above bring to mind certain codes, working environments and specialties, and expertise. However, what is CM? It obviously has a part dealing with corrosion and a part dealing with management. The confusion arises from here; how can management which is seeming a non‐technical issue, be matched with corrosion which is a highly technical issue?

      All the materials written to date on the management of corrosion are just looking at the science/engineering, and to some extent economy of corrosion, without detailing with the actual requirements (for example, about the economic nomenclature that is needed to understand cost of corrosion). Some of the publications about CM do suffer from the defects mentioned above. Some examples of CM literature are:

      A. Morshed, “An Introduction to Corrosion Management in Industry,” NACE, USA, 2017.

      A. Morshed, “An Introduction to Asset Corrosion Management in the Oil and Gas Industry, 2nd edition,” NACE, USA, 2016.

      A.S. Groysman, “Corrosion Problems and Solutions in Oil Refining and Petrochemical Industry,” Springer, 2017.

      “My Manual: Practical Corrosion Management,” a manual published by IDC Technologies, 2009, Perth, Australia.

      Even IMPACT report by ex‐NACE (now AMPP) that was published in 2016 had some sections on management and economy without any focus on engineering and science aspect of corrosion.

      There are three very important features about corrosion:

      1 Corrosion and Failure: Corrosion is inevitable and manageable; failure is inevitable and non‐manageable. Being non‐manageable does not mean that it cannot be prevented, it simply means that when failure happens, it happens! This distinguishment between these two terms if of vital importance; the prejudice of many who deal with corrosion issues is that they are entitled to find a way to prevent or control corrosion.4 Corrosion occurs anyway due to the thermodynamic nature of it, it is our duty, though, to prevent failures. It is through failures and leaks that not only economic costs are imposed (from shut down costs to maintenance and replacement), but also environmental effects also occur. Study of corrosion processes ending in leak and failure is the task of a corrosion specialist, post‐mortem forensic investigation of the failure is what a forensic investigator does to help build a root cause analysis report, but who is to measure the seriousness of the environmental effects thus produced? Who is going to estimate the economic loss (direct cost and indirect cost)?

      2 Risk and Likelihood: If the likelihood of getting a certain type of corrosion‐related failure is low, it does not necessarily mean that is risk is also low and vice versa. The confusion between risk and likelihood

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