On the Activation Energy of the Weld Metal

Supplement to Report I

Abstract

In Report I the author obtained the values of activation energies for several electrodes made by Kobe Steel Works.
In the investigation of this energy, the following points must be considered: 1) To study the relation between activation energy and metal constitution, welding conditions should be kept constant.
2) The tempering method is only an approximation; the, isothermal method must be adopted for more exact values.
3) The “;Rate Process Theory” can applicable only to the single process.
4) Activation energy can be measured in terms not only of change in hardness but in other stresssensitive
physical properties, e. g., electric conductivity, coercive force, etc.