Electrochemical corrosion behavior of Ti–24Nb–4Zr–8Sn alloy in a simulated physiological environment

Bai, Yanjie; Li, S.J.; Prima, Frédéric; Hao, Yulin; Yang, Run

doi:10.1016/j.apsusc.2011.12.096

Cited by 83 publications

(47 citation statements)

References 37 publications

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“…Ti and Ti6Al-4 V alloys. This is probably due to the constitution of the protective oxide film formed on the surface of the TLM alloy, and Bai et al obtained the similar results [27].…”

Section: Curves Without Wearsupporting

confidence: 74%

“…Bai et al [27] reported the values of E corr and I corr of the C.P. Ti and Ti-6Al-4V samples in the PBS solution at 37°C, and the values are listed in Table 4.…”

Section: Curves Without Wearmentioning

confidence: 99%

“…Phosphate-buffered solution (PBS) is a simulated body fluid commonly used in biomedical research for implant materials applications [27,28]. In order to simulate the physiological conditions of human, PBS was chosen for the electrolyte.…”

Section: Simulated Physiological Solutionsmentioning

confidence: 99%

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Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

et al. 2014

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The wear and electrochemical corrosion behavior of the biomedical Ti-25Nb-3Mo-3Zr-2Sn (TLM) titanium alloy was investigated in various simulated physiological solutions. Different simulated physiological solutions comprised phosphate-buffered solution (PBS), PBS with bovine serum albumin (PBS?BSA), and PBS with hyaluronic acid (PBS?HA) were employed. A potentiostat and a reciprocating friction and wear tester were used to study the wear and corrosion behavior of the TLM alloy. The influence of the chemical composition of the simulated solutions on the tribo-electrochemical behavior was considered by potentiodynamic studies under reciprocating friction and wear conditions. It was found that the corrosion tendency of the TLM alloy was the most obvious in PBS?HA under static corrosion condition, while it was just opposite with wear. Compared with static corrosion, the corrosion resistance of the TLM alloy was decreased with sliding conditions. The values of i corr were two orders of magnitude higher than those at static corrosion. This phenomenon shows that the wear accelerated corrosion. Under coexisting condition of both electrochemical corrosion and wear, the wear rate of the TLM alloy mutually influenced by both factors will be accelerated. Plastic grooves and deformation were observed on the worn surfaces of the TLM alloy by scanning electron microscopy (SEM). Through the observation of SEM, the tribological mechanism was a typical corrosive wear, and the main wear mechanisms were abrasive with adhesive wear under the interaction between corrosion and wear. The XPS results show that the passive films include the TiO

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“…Ti and Ti6Al-4 V alloys. This is probably due to the constitution of the protective oxide film formed on the surface of the TLM alloy, and Bai et al obtained the similar results [27].…”

Section: Curves Without Wearsupporting

confidence: 74%

“…Bai et al [27] reported the values of E corr and I corr of the C.P. Ti and Ti-6Al-4V samples in the PBS solution at 37°C, and the values are listed in Table 4.…”

Section: Curves Without Wearmentioning

confidence: 99%

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Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

et al. 2014

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“…Esse comportamento de rapassivação tem sido observado por outros autores em ligas de titânio e segundo os mesmos essa capacidade que o material tem de se repassivar exibe um importante papel na resistência à corrosão da liga [22][23]. É importante ressaltar que de acordo com a Tabela 1, todas as ligas apresentam valores de densidades de corrente de corrosão A/cm 2 , esses valores são característicos de ligas de titânio com elevada resistência à corrosão [24][25]. Outro fato interessante é que todas as ligas sofrem repassivação acima de 2000 mV e embora a liga Ti-35Nb-7,5Ta tenha a menor densidade de corrente de passivação mostrada na Tabela 1, é importante ressaltar que a liga Ti-35Nb-5Ta apresenta uma pequena passivação desde o início da curva, contudo esse filme é rapidamente quebrado em torno do potencial de 177 mV e só é refeito em uma densidade de corrente de passivação maior que a liga Ti-35Nb-7Ta.…”

Section: Ensaios Eletroquímicosunclassified

RESISTÊNCIA À CORROSÃO DE LIGAS Ti-35Nb-xTa EM SOLUÇÃO DE NaCl 0,9%

Macedo¹,

Matos²,

Souza³

2018

ABM Proceedings

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ResumoNeste trabalho, o comportamento eletroquímico das ligas Ti-35Nb-xTa (x = 0; 2,5; 5,0; 7,5)Ta (% em peso), solubilizadas e resfriadas em água, foi investigado em meio de NaCl a 0,9% mol/L através de testes de polarização anódica e medidas de impedância, micrografias e DRX. Os ensaios eletroquímicos mostraram que as ligas contendo tântalo apresentam uma maior resistência à corrosão que a liga sem tântalo. Além disso, os ensaios eletroquímicos em conjunto com as micrografias e DRX indicam que a composição Ti-35Nb-5Ta é a que apresenta maior resistência à corrosão no meio estudado, pois além de ocorrer uma estabilização da fase , o refino do grão foi menos pronunciado e por esse motivo minimizou o surgimento de microcélulas eletroquímicas. Palavras-chave: Ligas de titânio; Resistência à corrosão; Biomateriais. CORROSION RESISTANCE OF Ti-35Nb-xTa ALLOYS IN 0.9% NaCl SOLUTION AbstractThis work is a study of the electrochemical behavior of the Ti-35Nb-xTa alloys (x = 0, 2.5, 5, 7.5) (wt. %), solution treated and quenched in water. Anodic polarization tests and impedance measurements were carried out in these compositions by using a solution of 0.9% NaCl; their microstructures and XRD patterns were also obtained. The results showed that the alloys containing tantalum have a higher corrosion resistance than that one without Ta. In addition, electrochemical tests, together with the micrographs and XRD, indicate that the Ti-35Nb-5Ta composition is the most resistant to corrosion in the medium analyzed. This fact is a consequence of the stabilization of the  phase, and of its grain size, where the refinement effect of Ta is not enough strong and minimizes the formation of electrochemical microcells.

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“…The fatigue properties of magnesium alloy [34,35], ZrCuFeAlAg bulk metallic glass [36], niobium alloy [37], stainless steel [38], TiN-and DLC-coated stainless steel [39] in simulated body fluid have been studied in the recent five years. Bai et al [40], Huang et al [41], and Li et al [42,43] reported that nanocrystal surface layers by SSN are conducive to the corrosion resistance, because of the high density grain boundaries and the deeper passive film.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ultrasonic Surface Impact on the Fatigue Behavior of Ti-6Al-4V Subject to Simulated Body Fluid

Cao

Wang

et al. 2017

Metals

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Abstract:The effect of ultrasonic nanocrystal surface modification (UNSM) on the fatigue behavior of Ti6Al4V (TC4) in simulated body fluid (SBF) was investigated. UNSM with the condition of a static load of 25 N, vibration amplitude of 30 µm and 36,000 strikes per unit produced about 35 µm surface severe plastic deformation (SPD) layers on the TC4 specimens. One group was treated with a hybrid surface treatment (UNSM + TiN film). UNSM technique improves the micro hardness and the compressive residual stress. The surface roughness is increased slightly, but it can be remarkably improved by the TiN film. The fatigue strength of TC4 is improved by about 7.9% after UNSM. Though the current density of corrosion is increased and the pitting corrosion is accelerated, UNSM still improved the fatigue strength of TC4 after pre-soaking in SBF by 10.8%. Interior cracks initiate at the deformed carbide and oxide inclusions due to the ultrasonic impacts of UNSM. Corrosion products are always observed at the edge of fracture surface to both interior cracks and surface cracks. Coating a TiN film on the UNSMed surface helps to improve the whole properties of TC4 further.

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Electrochemical corrosion behavior of Ti–24Nb–4Zr–8Sn alloy in a simulated physiological environment

Cited by 83 publications

References 37 publications

Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

Wear and Electrochemical Corrosion Behavior of Biomedical Ti–25Nb–3Mo–3Zr–2Sn Alloy in Simulated Physiological Solutions

RESISTÊNCIA À CORROSÃO DE LIGAS Ti-35Nb-xTa EM SOLUÇÃO DE NaCl 0,9%

Effect of Ultrasonic Surface Impact on the Fatigue Behavior of Ti-6Al-4V Subject to Simulated Body Fluid

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