Factors That Affect SCC

In effect, studies conducted by Chomet and Coughlin on hydrogen absorption in iron have evidenced precisely this dependency on temperature, as shown in Fig. 15.40 [28]. The maximum absorption in iron is obtained at low temperatures, while increasing the temperature hydrogen mobility and diffusion in iron prevails. This favors the elimination of hydrogen that cannot remain in iron. At 120 °C the baking- 

The same effect can be seen in terms of grain size for two 4,340 steel [31] Fig. 15.44. 

Steigerwald, E.A. Delayed failure of high-strength steel in liquid environment. Proc. ASTM 60, 750-760 (1960) 

Laycock, N.J., Newmann, R.C. Localised dissolution kinetics, salt films and pitting potentials. Corros. Sci. 39, 1771 (1997) 

Compton, K.G., Mendizza, A., Bradley, W.W. Atmospheric galvanic couple corrosion. Corrosion II, 383 (1955) 

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