File Exchange > Data Handling >    Tafel Extrapolation

How to install and run
Author:
OriginLab Technical Support
Date Added:
11/19/2015
Last Update:
3/10/2023
Downloads (90 Days):
765
Total Ratings:
51
File Size:
277 KB
Average Rating:
File Name:
Tafel Extr...on.opx
File Version:
1.51
Minimum Versions:
2016 (9.3)
License:
Free
Type:
App
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:

v1.51: update localization
v1.5: fix Icorr in Nonlogarithmic Form checkbox failed to work issue
v1.4: support for natural and 10 base logarithmic
v1.3: add option for keeping tangent line when output
v1.2: support for Icorr,a and Icorr,c
v1.1: fixed failed to open issue in Origin 2018

Reviews and Comments:
01/28/2026OriginLabHi yunesbnf,

You can output Ecorr and Icorr's value to check.
Or could you please send us the opju file you are working on and also tell us the detailed steps to reproduce the issue, so that we can further check what went wrong with this app?

OriginLab Technical Support

01/27/2026yunesbnfi am using this app, but i can't see the Ecorr and Icorr, it is like they are hidden or something, i have already checked them, but they are not there, did someone solve this issue

06/17/2025anuar1234512345678

06/17/2025f.dalantaThis add-in is so useful. I can save much time by using this tool. good job and thanks origin!

05/19/2025 ok

04/27/2025 ok

03/26/2025qaes1288good

10/13/2024YeeeeeeeeQgood good!!!!thank you origin!!!!!

05/15/2024srwangI would like to tell the people in the comment who are experiencing "the output is not two tangents but two curves": before using this app, you should first log the current data, and then plot the processed current data, so that the X-axis (or Y-axis) scale is linear, and thus the output is two tangents.

01/19/2024c-lookHello, why is the tangent line out of my extrapolation method not a straight line but two curves, and how to solve this problem?

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