Microstructure and wear behavior of Ti-6Al-4V treated by plasma Zr-alloying and plasma nitriding

Chen, Kai; Liu, Xiaoping; Liu, Xiaozhen; Meng, T.X.; Guo, Qianqian; Wang, Zhenxia; Nai-min, Lin

doi:10.1007/s11595-016-1494-5

Cited by 13 publications

(5 citation statements)

References 31 publications

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“…This results in a slight enrichment of aluminum below the compound layer in nitrided Ti6Al4V. − The N profile for the TFD sample has a sudden drop, whereas for the HCPN sample, this happens gradually, indicating the deeper incorporation of nitrogen into the alloy in several micrometers . For the HCPN, the N-containing zone is not easily distinguishable by looking at the N profile, because of this smoothly nitrogen-enriched interface. , …”

Section: Results and Discussionmentioning

confidence: 99%

“…66 For the HCPN, the N-containing zone is not easily distinguishable by looking at the N profile, because of this smoothly nitrogen-enriched interface. 3,67 The depletion of Al taking place on HCPN samples may be a beneficial biological effect, once aluminum has been assumed to be detrimental to a wide range of cells, 22 while also being commonly correlated with neurological diseases in patients who received implants, 23 but it may entail loss of mechanical properties to the alloy. The diffusion events that take place during HCPN processing form a bilayer consisting of δ-TiN, followed by ε-Ti 2 N, arranged in this order because of nitrogen interstitial filling of Ti lattices, either totally or partially.…”

Section: Chemical Profile By Glow Discharge Optical Emission Spectros...mentioning

confidence: 99%

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Comparative Study of Physicochemical Properties and Biocompatibility (L929 and MG63 Cells) of TiN Coatings Obtained by Plasma Nitriding and Thin Film Deposition

Fontoura

Bertele

Rodrigues

et al. 2021

ACS Biomater. Sci. Eng.

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Ti6Al4V is one of the most lightweight, mechanically resistant, and appropriate for biologically induced corrosion alloys. However, surface properties often must be tuned for fitting into biomedical applications, and therefore, surface modification is of paramount importance to carry on its use. This work compares the interaction between two different cell lines (L929 fibroblasts and osteoblast-like MG63) and medical grade Ti6Al4V after surface modification by plasma nitriding or thin film deposition. We studied the adhesion of these two cell lines, exploring which trends are consistent for cell behavior, correlating with osseointegration and in vivo conditions. Modified surfaces were analyzed through several physicochemical characterization techniques. Plasma nitriding led to a more pronounced increase in surface roughness, a thicker aluminum-free layer, made up of diverse titanium nitride phases, whereas thin film deposition resulted in a single-phase pure titanium nitride layer that leveled the ridged topography. The selective adhesion of osteoblast-like cells over fibroblasts was observed in nitrided samples but not in thin film deposited films, indicating that the competitive cellular behavior is more pronounced in plasma nitrided surfaces. The obtained coatings presented an appropriate performance for its use in biomedical-aimed applications, including the possibility of a higher success rate in osseointegration of implants.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Chemical Profile By Glow Discharge Optical Emission Spectros...mentioning

confidence: 99%

Comparative Study of Physicochemical Properties and Biocompatibility (L929 and MG63 Cells) of TiN Coatings Obtained by Plasma Nitriding and Thin Film Deposition

Fontoura

Bertele

Rodrigues

et al. 2021

ACS Biomater. Sci. Eng.

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“…However, the lack of corrosion resistance of TC4 titanium alloy in extreme environments means it struggles to meet the requirements of aerospace development in terms of material properties, which greatly limits its application in practical engineering applications [ 3 , 4 ]. To improve the performance of TC4 titanium alloy, surface modification technology is the most popular method to form coatings with excellent performance on the surface of TC4 titanium alloy [ 5 , 6 , 7 , 8 ]. Due to the clear distinction between solvent and solute, the types of elements added in traditional alloys are limited and their content is small, meaning the performance of the material has struggled to meet the requirements of aviation work.…”

Section: Insroductionmentioning

confidence: 99%

Corrosion Behavior of TiMoNbX (X = Ta, Cr, Zr) Refractory High Entropy Alloy Coating Prepared by Laser Cladding Based on TC4 Titanium Alloy

Liu

Zhang

et al. 2023

Materials

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TiMoNbX (X = Cr, Ta, Zr) RHEA coatings were fabricated on TC4 titanium alloy substrate using laser cladding technology. The microstructure and corrosion resistance of the RHEA were studied by XRD, SEM and an electrochemical workstation. The results show that the TiMoNb series RHEA coating was composed of a columnar dendrite (BCC) phase, a rod-like second phase, a needle-like structure and equiaxed dendrite, but the TiMoNbZr RHEA coating showed high-density defects, similar to those in TC4 titanium alloy, which were composed of small non-equiaxed dendrites and lamellar α’(Ti). In the 3.5% NaCl solution, compared with TC4 titanium alloy, the RHEA had a lower corrosion sensitivity and fewer corrosion sites, showing better corrosion resistance. The corrosion resistance of the RHEA ranged from strong to weak in this order: TiMoNbCr, TiMoNbZr, TiMoNbTa and TC4. The reason is that the electronegativity of different elements is different, and the speeds of the formation of the passivation film were very different. In addition, the positions of pores appearing in the laser cladding process also affected the corrosion resistance.

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“…During the alloying process, the interdiffusion of alloy elements at high temperature is responsible for the continuous and gradient distribution of elements from the deposition layer and substrate, which eventually results in a high interfacial strength of the coating. Usually, the hardness and wear resistance of surface-modified materials can also be improved due to the solid solution strengthening effect or the second phase strengthening effect [22][23][24]. Moreover, the high temperature required for the alloying treatment is generated by glow discharge.…”

Section: Introductionmentioning

confidence: 99%

Mechanical, Electrochemical, and Osteoblastic Properties of Gradient Tantalum Coatings on Ti6Al4V Prepared by Plasma Alloying Technique

Zhang

Gao

et al. 2021

Coatings

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Plasma alloying technique capable of producing metallic coatings with metallurgical bonding has attracted much attention in dental and orthopedic fields. In this study, the effects of temperature and time of plasma tantalum (Ta) alloying technique on the mechanical, electrochemical, and osteoblastic properties of Ta coatings were systematically investigated. Ta coatings prepared at 800 °C possess better interfacial strengths than those prepared at 750 and 850 °C, and the interfacial strength increases with prolonged alloying time (30–120 min). At 800 °C, however, the increased proportion of the soft Ta deposition layer with alloying time in the whole coating impairs the surface mechanical properties of the entire coating, as convinced by decreased microhardness and wear resistance. Moreover, Ta coatings exhibit better corrosion resistance than the Ti6Al4V substrate in Dulbecco’s modified Eagle medium. The enhanced adhesion and extracellular matrix mineralization level of osteoblasts demonstrate the better cytocompatibility and osteogenic activity of the Ta coating. Ta30 (Ta coating prepared at 800 °C for 30 min) exhibits excellent mechanical, electrochemical, and osteoblastic behaviors and is promising in biomedical applications.

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Microstructure and wear behavior of Ti-6Al-4V treated by plasma Zr-alloying and plasma nitriding

Cited by 13 publications

References 31 publications

Comparative Study of Physicochemical Properties and Biocompatibility (L929 and MG63 Cells) of TiN Coatings Obtained by Plasma Nitriding and Thin Film Deposition

Comparative Study of Physicochemical Properties and Biocompatibility (L929 and MG63 Cells) of TiN Coatings Obtained by Plasma Nitriding and Thin Film Deposition

Corrosion Behavior of TiMoNbX (X = Ta, Cr, Zr) Refractory High Entropy Alloy Coating Prepared by Laser Cladding Based on TC4 Titanium Alloy

Mechanical, Electrochemical, and Osteoblastic Properties of Gradient Tantalum Coatings on Ti6Al4V Prepared by Plasma Alloying Technique

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