A study has been conducted of the effects of cadmium plating on stressed steels at elevated temperatures. The experimental procedures involved several tests characterized as the stress-rupture tests, tensile tests, and fatigue tests. Materials studied consisted of several aircraft quality SAE steels; namely, 4340, 4130, 1095, 18-8, and H-13 hot work die steels. Strength levels from 180,000 psi to 300,000 psi, as suitable for the several steels, were evaluated for a variety of conditions of stress concentration.nThe steels examined, except the austenitic stainless steels, were susceptible to em-brittlement by cadmium plating at elevated temperatures. With decreasing temperatures, the noticeable effect of cadmium plating on the properties of steels is correspondingly decreased.nAll the steels examined showing an effect on one property, showed similar effects on the other properties.
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