File Exchange > DataHandling >    Tafel Extrapolation

Author:
OriginLab Technical Support
Date Added:
11/19/2015
Last Update:
9/19/2018
Downloads (90 Days):
5408
Total Ratings:
24
File Size:
271 KB
Average Rating:
File Name:
Tafel Extr...on.opx
File Version:
1.20
Minimum Versions:
License:
Free
Summary:

Estimate Tafel Extrapolation using tangent lines on a data plot.

Screen Shot and Video:
Description:

Purpose
This app can be used to estimate the Tafel Extrapolation, and output the corresponding values (e.g. anodic/cathodic curve function, corrosion potential and current, anodic/cathodic curve's slope and angle).

Installation
Download the file "Tafel Extrapolation.opx". Then drag-and-drop the file onto the Origin workspace.

Operation

  1. With a graph window active, select the "Tafel Extrapolation" app icon from the Apps panel. A dialog will open. The dialog provides options for the app gadget.
  2. Click the Help button in the top right corner of the dialog to open the help file. The file includes an explanation of dialog box settings, plus an example.

Updates:

v1.1: fixed failed to open issue in Origin 2018
v1.2: support for Icorr,a and Icorr,c

Reviews and Comments:
06/15/2021Mik95Very useful

04/15/2021  

04/15/2021XinruiHOnce had the 'curve fitting' as well, I managed to solve that by Log scaled the data before adding them into the workbook.
Very useful! Thank you.

04/10/2021HKheirabadiIt was perfect. Please add polarization resistance measurement.
Users should note that in order for this App to work one should have his/her current density in the logarithmic format ( Like -7, -6 , -5 , -4 , ... NOT 1e-7, 1e-6, 1e-5, ...)

04/09/2021  

04/22/2020claudiagmI have the same problem as Fernando. I am using OriginPro 2020 and it fits curves instead of tangent lines, so the results are too different. How can I change this? Thanks

03/12/2020OriginLabHi forooza2,
Are you using Origin 2016 or later versions? Could you pleaes tell what problem you ran into?

03/10/2020forooza2Doesn't work!

04/24/2019OriginLabHi ferdinando, could you send the data to our technical service? And then we can see what help to do for you with your data.

04/19/2019ferdinando@ifma.edu.brHello! I ploted my linear polarization but whwn I want to use Tafel Extrapolation not show linear line but curves.

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