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Inhibitive effect of benzotriazole on the corrosion and corrosion fatigue of α-Al bronze alloy in LiBr solution

Materials and Corrosion, ISSN: 1521-4176, Vol: 69, Issue: 12, Page: 1827-1836
2018
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Article Description

The effect of benzotriazole (BTAH) on the corrosion fatigue behavior of α-Al bronze in 1 M LiBr solution has been investigated using reverse bending technique during testing it in LiBr/HO system. The adsorption equilibrium estimated to be 1431.25 M while the free energy of adsorption to be −27.968 kJ mol. The BTAH feature found to improve the fatigue life to a value near to that of α-Al bronze in air. The optical and scanning electron microscopy for the α-Al bronze for the fatigued in air, revealed that the fracture mode was transgranular and that the initiation and propagation was transcrystalline. α-Al bronze fatigued in 1 M LiBr showed less fatigue resistance when compared to that of α-Al bronze fatigued in air. The addition of 0.02 M of BTAH to 1 M LiBr increased the fatigue life and fatigue strength for α-Al bronze where its fatigue behavior curve was close to that of air. The results demonstrated obviously a reduction of the corrosion fatigue resistance of α-Al bronze in 1 M LiBr solution but it has a considerable increase in the presence of BTAH.

Bibliographic Details

Youssef, Gehan I.; El Meleigy, Abeer E.; Khorshed, Lobna A.; Attia, Adel; Ashour, Elsayed A.

Wiley

Environmental Science; Engineering; Materials Science

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