F Had. Fig, 3. Small test rods used fox tests described in report. g -k- - -n-r Hi Fig. 9. 7 r' Scratch Fatigue test rod which had a transverse scratch outside the critical cross-section and broke at that point-(Break is indicated in the/figure.) -r— t . ho bo J L i fi r; 34 … Number of revolutions - millions. Fig. 13. Fatigue diagram cf duralumin alloys Zand 6S1E. Although t he limits of these alloys seem to be respectively +34 & +43kg/mm' Figs. 3, 9, and 13.
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