Abstract
Small smooth plate specimens were reverse bend tested at a ‘walking pace’ of 1·7 Hz in air, distilled water and 0·17 mol dm−3 saline solution under acid, neutral and alkaline conditions. The corrosion fatigue performance of mild steel, stainless steel type 316, titanium 130 and titanium alloy 318 has been evaluated in a comparative study of the influence of a single 2 mm diameter hole. Generally stress range, environment, and material were variables affecting the influence of a hole. Of particular concern in this work is the result for alloy 318 whereby, in comparison with stainless steel 316, its peiformance is drastically reduced in the presence of a hole. Such design features should be avoided for titanium alloy 318 surgical implants.
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