Abstract
The study investigated the possibility of improving the properties of titanium alloy, specifically, Ti–6Al–4V, by replacing its toxic element with safer ones while maintaining its functionality for marine applications. The suggested system is the Ti–2Zr–1.5N–0.04H–XFe (X: 0–1.5) system, where two alloys have been synthesized by field‐assisted sintering technology and investigated. The alloys are iron-free alloy and one alloy has 1.5 wt% iron in it. The CALPHAD approach was utilized for experimental parameters that were validated through experiments. The microstructure reveals that the addition of iron improves sintering by Joule heating, creating a localized heat concentration that achieves a uniform distribution of Widmanstätten microstructure while maintaining full density. The characterization of the sample by XRD analysis has matched CALPHAD pseudo-binary phase diagrams and showed that intermetallic TiFe phase formation is prevented. Moreover, adding iron improved corrosion resistance compared with the iron-free sample.
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