Cathodic protection quiz

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3 steps to begin experiments...aka...I am lost in this lab!

All the students in the first few days of research are faced with the dilemma of the right time and way to begin experimentation. There are as many ways and thought processes to do so as there are people. I will share my learnings here. The problem is that the literature review tends to become so vast that it is difficult to decide what the exact problem is. 1. The best way is to NOT WAIT for the literature review to get over. Begin with the experiments simultaneously. Gain experience on as many new techniques as possible. 2. Start with that research paper which will most likely form the basis of your work. Attempt to reproduce the experiments in the paper. Try to see what other experiments can corroborate those results. 3. Select the correct research papers to continue the literature review. P.S. All the experiments should have a reason for doing them. You should be able to answer the question 'Why should I do this experiment? What will I learn?'

Corrosion rate and pipe design

Corrosion is a serious issue. However, corrosion engineers are rarely asked about it during the designing of components. It is only when the components fail that people remember there are people who have studied corrosion for their whole life and would provide a solution. The design problems are really quite simple, and the loss of money could have been avoided had the company bothered to involve a corrosion engineer in the first place. Let me illustrate this with an example of a factory near the sea. Suppose a mild steel pipe is fitted inside the factory to transport 1 wt. % hydrochloric acid. The engineer has a choice between selecting pipes of 5 mm and 10 mm thickness. To save money, they go for the pipe with the 5 mm thickness because it has been 'successfully used by the other customers'. Over the course of a year, it is seen that the pipe has started leaking at certain places. Further investigation reveals that those sections have thinned to half of their thickn...

Corrosion in daily life - Steel frames on a balcony

Corrosion in daily life - Steel frames Looking at LinkedIn, corrosion may feel like an extremely intricate issue seen in large industries. However, looking around, we can see corrosion everywhere! Where was this photo taken? The photo above is of a steel frame attached to a balcony. The part shown here is the bottom part of the frame. The coatings for such steel parts usually serve the purpose of moderate corrosion protection and more of aesthetics. If you observe, the thickness of the coatings also does not seem to be a lot. Why did the coating degrade? When it rains, the rainwater collects on the bottom of the frames. This degrades the coating. At the places where it is not perfect anyway, the underlying steel is free to corrode. Most importantly, corrosion is more severe at the edges. It is severe enough to chip off the material entirely. That point is a prime site for crack formation and breaking of the frame. Have you seen such corrosion in your balcony fram...

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