Influence of Laser Nitriding on the Surface and Corrosion Properties of Ti-20Nb-13Zr Alloy in Artificial Saliva for Dental Applications

Hussein, M.A.; Yilbaş, Bekir Sami; Kumar, A. Madhan; Drew, R. A. L.; Al-Aqeeli, N.

doi:10.1007/s11665-018-3569-2

Cited by 35 publications

(14 citation statements)

References 47 publications

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“…In dental applications, Laser Nitriding has proved to be an effective process in enhancing the surface hardness, the coefficient of friction and corrosion resistance of the Ti-20Nb-13Zr and wear and corrosion resistance of Ti-13Nb-13Zr biomedical-beta alloys [34,35]. Plasma nitrided beta 21S (Ti-15Mo-3Nb-3Al-0.2Si) alloy showed higher hardness but inferior corrosion resistance compared to the untreated alloy [36].…”

Section: Surface Processing For Bio-medical Applicationmentioning

confidence: 99%

Processing of Beta Titanium Alloys for Aerospace and Biomedical Applications

Soundararajan¹,

Vishnu²,

Manivasagam³

et al. 2018

Titanium Alloys - Novel Aspects of Their Processing [Working Title]

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The unique combination of attributes-high strength to weight ratio, excellent heat treatability, a high degree of hardenability, and a remarkable hot and cold workability-has made beta titanium alloys an attractive group of materials for several aerospace applications. Titanium alloys, in general, possess a high degree of resistance to biofluid environments; beta titanium alloys with high molybdenum equivalent have low elastic modulus coming close to that of human bone, making them particularly attractive for biomedical applications. Bulk processing of the alloys for aerospace applications is carried out by double vacuum melting followed by hot working. There have been many studies with reference to super-solvus and sub-solvus forging of beta titanium alloys. For alloys with low to medium level of molybdenum equivalent, sub-solvus forging was demonstrated to result in a superior combination of mechanical properties. A number of studies have been carried out in the area of heat treatment of beta titanium alloys. Studies have also been devoted to surface modification of beta titanium alloys. The chapter attempts to review these studies, with emphasis on aerospace and biomedical applications.

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Section: Surface Processing For Bio-medical Applicationmentioning

confidence: 99%

Processing of Beta Titanium Alloys for Aerospace and Biomedical Applications

Soundararajan¹,

Vishnu²,

Manivasagam³

et al. 2018

Titanium Alloys - Novel Aspects of Their Processing [Working Title]

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“…to adjust it to natural saliva composition [39,40]. The pH of prepared solution was observed to be 5.5 and in correspondence to pH of natural saliva.…”

Section: Immersion Testingmentioning

confidence: 87%

An Efficient Approach for Nitrogen Diffusion and Surface Nitriding of Boron-Titanium Modified Stainless Steel Alloy for Biomedical Applications

Ali

Rani

Mufti

et al. 2019

Metals

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Austenitic 316L stainless steel has been the most widely acceptable biomaterial for producing implants. The downside of this material includes the leaching of nickel ions from the matrix that limits its’ usage in implant manufacturing. In this research, production of stainless steel alloy modified with boron and titanium is investigated. The sintering of the alloy systems is carried out in nitrogen atmosphere for a dwell time of 8 h. The X-Ray diffraction (XRD) analysis reveals that dwell time and alloy composition leads to the formation of strong nitrides and borides. The X-Ray Photoelectron Spectroscopy (XPS) results show the presence of nitrogen on to the surface of sintered specimens. The nitride layer on the surface of the specimens is helpful in the retention of nickel ions in the stainless steel matrix, as indicated in the weight loss measurements. The cytotoxicity assessment indicates that the developed alloys are biocompatible and can be used as implant materials.

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“…The exponent (n) of the constant phase element designates the deviance from perfect dielectric performance. When n approaches unity, the coated substrate is close to ideal capacitor behavior [36,37].…”

Section: In Vitro Corrosion Resistance Analysismentioning

confidence: 95%

In Vitro Corrosion and Bioactivity Performance of Surface-Treated Ti-20Nb-13Zr Alloys for Orthopedic Applications

et al. 2019

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The influence of surface treatments on the microstructure, in vitro bioactivity and corrosion protection performance of newly fabricated Ti-20Nb-13Zr (TNZ) alloys was evaluated in simulated body fluid (SBF). The TNZ alloy specimens were treated with separate aqueous solutions of NaOH and H2O2 and with a mixture of both, followed by thermal treatment. The nanoporous network surface structure observed in H2O2-treated and alkali-treated specimens was entirely different from the rod-like morphology observed in alkali hydrogen peroxide-treated specimens. XRD results revealed the formation of TiO2 and sodium titanate layers on the TNZ specimens during surface treatments. The water contact angle results implied that the surface-treated specimens exhibited improved surface hydrophilicity, which probably improved the bioactivity of the TNZ specimens. The in vitro corrosion protection performance of the surface-treated TNZ specimens was analyzed using electrochemical corrosion testing in SBF, and the obtained results indicated that the surface-treated specimens exhibited improved corrosion resistance performance compared to that of the bare TNZ specimen. The in vitro bioactivity of the treated TNZ specimens was assessed by soaking in SBF, and all the investigated treated specimens showed numerous apatite nucleation spheres within 3 days of immersion in SBF.

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Influence of Laser Nitriding on the Surface and Corrosion Properties of Ti-20Nb-13Zr Alloy in Artificial Saliva for Dental Applications

Cited by 35 publications

References 47 publications

Processing of Beta Titanium Alloys for Aerospace and Biomedical Applications

Processing of Beta Titanium Alloys for Aerospace and Biomedical Applications

An Efficient Approach for Nitrogen Diffusion and Surface Nitriding of Boron-Titanium Modified Stainless Steel Alloy for Biomedical Applications

In Vitro Corrosion and Bioactivity Performance of Surface-Treated Ti-20Nb-13Zr Alloys for Orthopedic Applications

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