FATIGUE STUDIES OF NON-FERROUS SHEET METALS 585 



10^ 



10" 



NUMBER OF REVERSALS 



Fig. 8 — Relation of Fibre Stress to Reversals, Everdur Alloy Spring Temper, 

 No. 24 B. & S. Gauge. 



50 



40 



S!30 



20 



10* 



Fig. 9- 



10" 10^ 



NUMBER OF REVERSALS 



10* 



-Relation of Fibre Stress to Reversals, Dispersion Hardened Brasses, 

 Alloys Nos. 33, 34 and 35, No. 24 B. & S. Gauge. 



