Corrosion Properties of Ti-B4C/CNF Functionally Graded Materials

Öz

        This study aims to investigate corrosion properties of Ti-B4C/CNF functional graded materials (FGMs). FGMs are produced in three layers by traditional cold pressing and sintering method. While B4C was incorporated into the Ti matrix at 5%, 10% and 15% percent, the CNF was only 0.5% by volume. Corrosion properties of FGMs are determined by potentiodynamic method. 3 M HCl was preferred as the corrosion solution. Corrosion rates were calculated from the Tafel curve and the corrosion surface was examined by using SEM-EDS. The results show that the corrosion process of composite material in 3 M HCl showed different corrosion resistance, in which corrosion rate showed the evolution trend of initial increase and subsequent decrease, while amount of reinforcement changed. While the best corrosion resistance among the FGMs was determined in the sample with 5%B4C additive, the worst corrosion resistance was determined with 15%B4C+0.5% CNF additive.

Anahtar Kelimeler

• FGMs
• B4C
• CNF
• Titanium
• Corrosion

Kaynakça

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