The Corrosion Inhibition Effect on Fatigue Behavior for Aluminum Alloy 5052 in the Saline Environment

The corrosion inhibition of Al alloys is the subject huge technological importance wing to use these in wide industrial applications. Fatigue life (number cycles failure Nf) for Al-Mg alloy 3.5% NaCl at different acidity and alkalinity (pH=1) with inhibitors was investigated this study. were composed mainly phosphate, adding a certain proportion other nontoxic select alternatives environmentally hazardous chromate. behavior studied by using fatigue machine plane-bending mode. large difference between corrosive mediums, such as NaCl, that dry air noticed. results showed without inhibitor, minimum obtained pH=1, where media too aggressive (extremely acidic), whereas highest value pH=5 very low solubility oxide film on alloy. As concentration inhibitor increased number well. scanning electron microscope (SEM) had conducted surface morphology fracture section specimens characterizing.