Skip to main content

Need of 'CORROSION PLANNING'

Image
By

Need for 'CORROSION PLANNING' 

The importance of material selection cannot be stressed enough.

With the equipment comes the material of the equipment, and every material is prone to corrosion in some way.

For most fields such as defence, oil and gas, automotive, and marine, the qualification tests for the material selection begin and stop with the mechanical properties and composition.

There is not even a mention of the possible corrosion phenomena for that particular material.

This results in 'surprises' when there is a serious failure. Only after that are the corrosion investigations carried out and modifications done.

However, by that time, it may be too late for some.

Hence, it is necessary that the concerned personnel in the industries do not cut costs where corrosion is known to be an issue.

What is Corrosion Planning?

It is critical to begin a "CORROSION PLANNING" to ensure that the corrosion risks of every material that is qualified, and every component that is bought are noted BEFOREHAND.

The possible areas of corrosion, environment of exposure, critical mechanisms, past studies, and required non-destructive corrosion testing should be identified. There are terms such as critical reliability variable (CRV) and integrity operating window (IOW), as given in API 584 and 970.

There must be a step where the corrosion risks are listed out for each component, no matter how small. The risks include not just the individual corrosion properties, but also the interaction between the various components.

The possible crevice locations should be mentioned in the print. The issues that may result during exposure to operating medium should be listed.

The types of corrosion seen previously should be mentioned and the risks must be labelled from high to low in the entire component.

A simple example is the corrosion planning for a lead acid battery and aboveground storage tanks.

Further requirements of the planning

Just the plain label of 'This material has a high corrosion resistance' is not enough. 


What does it mean? What are its corrosion potential and corrosion current density in the operating medium? What is its mpy in that operating medium?

It is essential to integrate the research aspects with the industrial requirements to arrive at the complete picture, as discussed in this free webinar.

If such aspects are included in the initial stages of material selection and product planning, the industries will be ready for any untoward incident that may happen. 

In most cases, they may even be prevented.

An example of this is API 970 which talks about a corrosion control document for every facility. This includes concepts such as corrosion loops.


Would you like to test your corrosion knowledge now?

Click here for the list of quizzes!


😀Happy learning!😀


Labels:

Comments

Post a Comment

Welcome to the CORROSPECTIVE BLOG! Scroll along for more posts! Looking forward to your feedback!
P.S. Don't forget to check out the free quizzes!

Popular posts from this blog

Corrosion risk planning - 1 - Lead acid battery

By
Corrosion is a quality, environment, and safety issue. Hence, it has to come under the cope of integrated management system audits However at the moment, it is more or less considered a quality issue. As such, the general tendency is to solve corrosion issues as they come. Especially in new inventions, the foresight to look for potential corrosion risk gets lost in the attempt to focus and highlight the amazing qualities of the said inventions. Hence, I have initiated this series, where I will take a component and point out the potential corrosion and damage risk areas.  Here goes the first one - lead acid battery cell. (Source:https://opentextbc.ca/chemistry/chapter/17-5-batteries-and-fuel-cells/)  Protective casing -  effect of temperature + electrolyte + contamination in electrolyte on the polymer crevice corrosion at fixtures mechanical damage during handling leading to voids for moisture ingress and oxygen/electrolyte leakage Positive terminal - corrosion of the mate...
Post a Comment
Read more

Thesis flowchart...aka...How to decide what to write first in your thesis?

By
It was that moment in my thesis writing when I had received a terrible feedback and was asked to overhaul the entire document. It was time to take a break from the screen and go back to basics. I printed out my document and went home. Then I took a break that evening, because it is one of the most underrated but essential things to get everything into perspective. The next day I proceeded to lay out the pages of my thesis chapter-wise on the table. Then I took a blank paper and pad. I thought, "How will I explain my work to my family members in my native language?" So I decided to write down my work in my native language in the form of an algorithm and then rearrange my thesis. I answered the following questions to do so - What is the issue? Where is it encountered? Is it very common? What makes it so very important? What are the steps that people have already taken to solve it? Why have they not been that effective? What is it that I did to solve the issue? How did I do it? ...
Post a Comment
Read more