Electronic States of the Cathodes of Titanium-based Alloys in Aqueous Corrosion

Morishita, Masao; Chikuda, Masahiro; Ashida, Yoshio; Morinaga, Masahiko; Yukawa, Natsuo; Adachi, Hirohiko

doi:10.2320/matertrans1989.32.264

Cited by 22 publications

(12 citation statements)

References 25 publications

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“…This implies that the relative amount of electron density of states for TiB2 and TiC at the Fermi level is very low (Fig. 9) and the presence of wide pseudo-gap further indicates that energy at the Fermi level is also low [62]. Besides, the valence electron charge densities maps of TiB2…”

Section: Prediction Of Chemical Bonding Using Cauchy Pressure and Density Functional Theorymentioning

confidence: 92%

Electrochemical and DFT studies of laser-alloyed TiB2/TiC/Al coatings on aluminium alloy

et al. 2018

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Microstructural and corrosion characteristic of laser-alloyed TiB2/TiC/Al composite coatings on 6082-T651 aluminium substrate were investigated. Density functional theory was used to study the chemical bonding of TiC and TiB2. The results confirmed a compact TiB2/TiC/Al-coating with low porosity, without any cracks and with good long-term stability against corrosion. Moreover, EIS and CP results confirmed enhanced corrosion resistance of laser-alloyed TiB2/TiC/Al coatings, with lower coating capacitance, increased polarisation resistance and reduced corrosion current density compared to the Al 6082 substrate. Although, all the laser-alloyed coatings experienced pitting attack, the intensity of pitting attack was substantially reduced compared to the substrate material.

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Section: Prediction Of Chemical Bonding Using Cauchy Pressure and Density Functional Theorymentioning

confidence: 92%

Electrochemical and DFT studies of laser-alloyed TiB2/TiC/Al coatings on aluminium alloy

et al. 2018

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“…Ti and Ti-6Al-4V on the other. Morishita et al [13] reported that a decrease in the corrosion current density and an increase in corrosion potential of the Ti alloys can promote the transition from an active to a passive state by means of the enhanced cathodic reaction, which would accelerate spontaneous passivation of the Ti surface at the anodic area by forming a TiO 2 layer.…”

Section: Electrochemical Measurementmentioning

confidence: 98%

Electrochemical behavior of Ti–Cr alloys in artificial saliva

Hsu

Wang

et al. 2009

Journal of Alloys and Compounds

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“…This shift indicated the positive influence of Pt on the corrosion resistance of cp-Ti. This is attributed to the promotion of the active-passive transition by the enhanced cathodic reaction [ 18 ]. Because the electronegativity of Ti (1.54) is lower than that of Pt (2.28), electrons move toward the region of Pt atoms in the alloy.…”

Section: Resultsmentioning

confidence: 99%

“…The increase in corrosion resistance of Ti-xPt alloys was probably caused by the decrease of α-Ti phase by the formation of intermetallic Ti 3 Pt compound. There are reports of increased corrosion resistance of titanium alloys due to the addition of Pt element [ 8 , 9 , 18 , 19 ].…”

Section: Resultsmentioning

confidence: 99%

Microstructure Analysis of Ti-xPt Alloys and the Effect of Pt Content on the Mechanical Properties and Corrosion Behavior of Ti Alloys

et al. 2014

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The microstructure, mechanical properties, and corrosion behavior of binary Ti-xPt alloys containing 5, 10, 15 and 20 wt% Pt were investigated in order to develop new Ti-based dental materials possessing superior properties than those of commercially pure titanium (cp-Ti). All of the Ti-xPt (x = 5, 10, 15, 20) alloys showed hexagonal α-Ti structure with cubic Ti3Pt intermetallic phase. The mechanical properties and corrosion behavior of Ti-xPt alloys were sensitive to the Pt content. The addition of Pt contributed to hardening of cp-Ti and to improving its oxidation resistance. Electrochemical results showed that the Ti-xPt alloys exhibited superior corrosion resistance than that of cp-Ti.

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Electronic States of the Cathodes of Titanium-based Alloys in Aqueous Corrosion

Cited by 22 publications

References 25 publications

Electrochemical and DFT studies of laser-alloyed TiB2/TiC/Al coatings on aluminium alloy

Electrochemical and DFT studies of laser-alloyed TiB2/TiC/Al coatings on aluminium alloy

Electrochemical behavior of Ti–Cr alloys in artificial saliva

Microstructure Analysis of Ti-xPt Alloys and the Effect of Pt Content on the Mechanical Properties and Corrosion Behavior of Ti Alloys

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