1973 Volume 42 Issue 11 Pages 1093-1099
A method is proposed for improving the fatigue strength of welded steel joints, which consists of rapid cooling in water after hot galvanizing. The effect of this method has been confirmed experimentally by tests on two kinds of welded I-beams. Fatigue test results for these beams show the considerable improvement of fatigue life which can be obtained by the above-mentioned treatment. The reasons for the improvement are also explained experimentally by age hardening and compressive residual stress on the joint surface.
