Potentiodynamic Corrosion Testing Protocol (step by step)

A protocol to set up and run a potentiodynamic corrosion test for metals.

[@thermalhub]

Clearly demonstrated sir. Thank you👍

[@simonblue56]

Clear demonstrations!

[@puskarpathak8913]

insightful, thanks for sharing

[@leepeter5643]

HI THANK YOU VERY MUCH FOR THIS VIDEO, PLEASE CAN YOU MAKE ONE EXPLAINING THE CURVES GAINED FROM THE EXPERIEMENT - SUCH AS TAFEL PLOTS - WHY WE USE THEM/ WHAT THEY ARE AND WHAT THE GRAPHS MEAN IN TERMS OF CORROSION? Very good video and would love to learn more!

[@vireshpatil3469]

THANK YOU SIR

[@vinithgr9148]

Hi it was very useful can you elaborate the Tafel calculation methodology followed after the studies are over, thanks

[@azimadzlan445]

Thank you for the video. May i know how we set up the initial and final E (V)? Is it depends on material and area?

[@learngrowwithimran8208]

Thank you sir. Why we use potentiostate here.

[@ghaithms9285]

Hey first of all thank you very much I'm working on similar project and I think I have something to ask you do you have any emails or how can I contact you ?

[@hayathaddad4535]

Thank you very much for the explanation, i have a homework and i have some questions about this. Can you help me ? How can i contact you :)

[@gyaniyumnam7266]

i want to know the price of the instrument

[@mohanparamasivam3951]

Thanks for this informative video.
What will be impact of initial delay time wrt to end results?

[@metallovers8226]

you have to wait until open circuit potential reaches a steady state before PD tests in order to produce reproducible results.

[@mohanparamasivam3951]

Thanks for your reply.
But my actual doubt is :
Say we are keeping 5 mins initial delay and 1hr initial delay, will the results be accurate in both cases. If Yes / No - Why it is So?

[@sukunmandal-]

Bro e test mujhe kaha milega karwanekeliye

[@lungazulu2760]

Thank you for the video, this will definitely help me with my project , may i please ask, if you have 4 samples to test, after each test, do i have to redo the cleaning, i will be using the same electrolyte sample and different metal samples. Also , the counter electrode, does it need to be changed?

[@metallovers8226]

The test itself may change pH of the electrolyte, it is better to repeat the cleaning and use new electrolyte every time.

[@DrMa10]

is Tafel test destructive? Does it cause damage to the coating ?

[@wen2jun1cai4]

Yes it will.

[@DrMa10]

i see.. thanks..need to learn more from u

[@john110503]

can i use a phase change material as an electrolyte to check corrosion?

[@metallovers8226]

As long as it has some conductivity.
en.wikipedia.org/wiki/Conductivity_(electrolytic)#:~:text=High%20quality%20deionized%20water%20has,electrolyte%20in%20a%20Wheatstone%20bridge.

[@raghavakumarvanama9074]

does this testing useful for measuring corrosion rate of reinforcement bar in concrete (R.Concrete member is wrapped with external FRP system)??

[@metallovers8226]

The electrochemical part is the same, but the sample prep and container will be quite different.

[@isaiahgonzales6727]

what is the standard statistical analysis used in this protocol?

[@metallovers8226]

based on the number of repeated tests that one performs, average, standard deviation, range etc. of measured data can be calculated.

[@Hakunamatata53191]

I suppose the corrosion cell/vessel was made of Teflon. was it custom made or does any company supply them?

[@wen2jun1cai4]

This particular one is custom made. You may use any non-corrosive container (e.g. glass beaker/tank) for your experiments.

[@t.dexter4448]

hatchegg that's an awesome video. can you please provide the name of the company that custom-made your cell and coupons?

[@metallovers8226]

They were designed by graduate student and fabricated by the machine shop at USF.

[@MinuteMayne]

Yo you're pouring acetone down the drain wtf!