Microstructure and corrosion of Pd-modified Ti alloys produced by powder metallurgy

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Abstract

A method for the fabrication of titanium alloy parts with enhanced corrosion resistance by a powder metallurgy route is presented in this paper. Commercial purity titanium powders modified with Pd have been hot isostatically pressed (HIPped) and the microstructure and distribution of the noble metal characterised by optical and scanning electron microscopy. The electrochemistry of the HIPped alloy has been assessed and the effect of powder size fraction evaluated. Results show that the phase composition and electrochemistry of the HIPped Pd-modified alloy is equivalent to that of wrought grade 7 Ti. (C) 2010 Elsevier Ltd. All rights reserved.

Details

Original languageEnglish
Pages (from-to)2413-2421
Number of pages9
JournalCorrosion Science
Volume52
Issue number7
Publication statusPublished - 1 Jul 2010

Keywords

  • Titanium, Polarization, SEM, Acid corrosion