The Effect of Galvanizing on the Fatigue Characteristics of an HSLA Steel 780042

This paper examines the effect of hot dip galvanizing on the fatigue resistance of SAE 950X HSLA steels. Tensile and constant amplitude strain-controlled fatigue data for 0.123 in. gage galvanized steel are compared to data from three uncoated SAE 950X steels. Additionally, results of testing galvanized and uncoated 0.103 in. gage MAXI-FORM® 50 (SAE 950X) steel from a split coil are compared. Galvanizing produced essentially no changes in tensile or fatigue properties except in the extreme low-cycle fatigue regime where galvanizing caused a reduction in the fatigue ductility coefficient, ε.


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