Abstract:
Forty-eight group hydrogen diffusion coefficients of three types of HSLA steels were obtained by electrochemistry hydrogen permeation double electrolysis cell method, which were measured at different temperatures and different tensile stresses.Regression analysis on relation of hydrogen diffusion coefficients of HSLA steels and the temperature, tensile stress and carbon equivalent was carried out, and the unified equation was
DH=3.03×10
-3exp (2.474
CEN+$\frac{{{I_1}}}{{763}}$-$\frac{{2 979}}{T}$).
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