Microstructure and corrosion of Pd-modified Ti alloys produced by powder metallurgy
2010; Elsevier BV; Volume: 52; Issue: 7 Linguagem: Inglês
10.1016/j.corsci.2010.03.006
ISSN1879-0496
AutoresM.A. Ashworth, Alison J. Davenport, Robin Ward, Hugh Hamilton,
Tópico(s)Titanium Alloys Microstructure and Properties
ResumoA 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.
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