A comparison between the corrosion behaviour of sintered and unsintered porous titanium

Seah, K.H.W.; Thampuran, R.; Chen, X.; Teoh, Swee Hin

doi:10.1016/0010-938x(95)00033-g

Cited by 62 publications

(34 citation statements)

References 6 publications

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“…With increasing porosity and decreasing macro-pore size, the corrosion current density increased, which was in agreement with the findings of Seah et al (1995Seah et al ( , 1998. However, in the present investigation, the corrosion potentials of solid and porous titanium samples with different porosities and pore sizes were almost the same, which did not agree with the results from Seah et al (1995Seah et al ( , 1998. In the work by Seah et al, the passivation potential dropped from 542 to 2 81.1 mV as the porosity was increased from 30 per cent with the large open interconnected pores, to 10 per cent with small isolated pores.…”

Section: The Corrosion Resistance Of Porous Titaniumsupporting

confidence: 93%

Effect of the macro‐pore structure on the anodic polarization behavior of porous titanium

Lü

2012

Anti-Corrosion Methods and Materials

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Purpose -Porous titanium is used in many bioimplant and electrode applications because of its interconnected pore structure and good corrosion resistance. The purpose of this paper is to study the anodic polarization behavior of porous titanium in different electrolytes and clarify the influences of the porosity and macro-pore size on the corrosion resistance. Design/methodology/approach -The porous titanium with 10-70% porosities and average macro-pore sizes in the range of 100-500 mm was prepared by the powder metallurgy method using polymethyl methacrylate (PMMA) as a space holder. Electrochemical corrosion tests were performed on porous titanium as well as solid titanium (with the same irregular and isolated micro-pore structures as that on the interconnected spheroidal macropore walls of porous titanium) in the 0.1 M H 2 SO 4 , 1 M NaOH and 0.9% NaCl (37 8C) solutions. Findings -It was found that porous titanium exhibited an active-passive transition behavior in the 1 M NaOH and 0.1 M H 2 SO 4 solutions. In contrast, a self-passivation transition behavior was observed in the 0.9% NaCl solution (37 8C). Originality/value -The paper demonstrates that both the porosity and macro-pore size of porous titanium play an important role in determining the corrosion rate, rather than the corrosion potential.

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Section: The Corrosion Resistance Of Porous Titaniumsupporting

confidence: 93%

Effect of the macro‐pore structure on the anodic polarization behavior of porous titanium

Lü

2012

Anti-Corrosion Methods and Materials

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“…More recently, the porous metals have been proposed for the application of biomedical implant materials, such as porous titanium and tantalum [1][2][3][4][5][6][7]. The advantages of cellular metals have been explicitly described in some recent investigates and reviews [8,9].…”

Section: Introductionmentioning

confidence: 99%

On the compressive behavior of sintered porous coppers with low-to-medium porosities—Part II: Preparation and microstructure

Wang

Zhang

2008

International Journal of Mechanical Sciences

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“…The influence of the compacting pressure of titanium on its corrosion performance in diluted chloride solutions was investigated by polarization curves [7,8], and the same methods were used to determine the effect of different reinforcements on the corrosion resistance in hydrochloric acid of titanium matrix composites [9]. Information is still scarce about the possible influence of the processing method in the corrosion resistance of PM Ti-6Al-4V alloy, whether by electrochemical mechanisms in aggressive aqueous environments, or by direct oxidation during high temperature exposure.…”

Section: Introductionmentioning

confidence: 99%

Influence of sintering on the corrosion behavior of a Ti-6Al-4V alloy

Bautista¹,

Moral

Blanco

et al. 2005

Materials and Corrosion

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This work studies the influence of the sintering conditions of a Ti-6Al-4V alloy on its corrosion performance. The alloy was vacuum sintered in different conditions of time and temperature. The density and microstructure (designating phase distribution) are evaluated. Corrosion resistance through electrochemical techniques (EIS) in 2 N and 6 N hydrochloric acid solutions, and oxidation resistance at 900, 1000 and 1100 8C are appraised, and corrosion is studied by microstructural and X-ray diffraction.

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A comparison between the corrosion behaviour of sintered and unsintered porous titanium

Cited by 62 publications

References 6 publications

Effect of the macro‐pore structure on the anodic polarization behavior of porous titanium

Effect of the macro‐pore structure on the anodic polarization behavior of porous titanium

On the compressive behavior of sintered porous coppers with low-to-medium porosities—Part II: Preparation and microstructure

Influence of sintering on the corrosion behavior of a Ti-6Al-4V alloy

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