Correlation between the microstructure and corrosion performance of the HIPIMS nitrided bio-grade CoCrMo alloy

Shukla, Krishnanand; Purandare, Yashodhan; Sugumaran, Arunprabhu Arunachalam; Ehiasarian, Arutiun P.; Khan, Imran; Hovsepian, P.Eh.

doi:10.1016/j.jallcom.2021.160429

Cited by 5 publications

(2 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Godoy-Gallardo et al's (13) study of antibacterial coatings may significantly affect the progress of the understanding of peri-implantitis and the cause of bone loss in animal experimentation. According to the literature, earlier work by Shukla et al on the nitriding of CoCrMo alloy utilizing the novel HiPIMS discharge showed that this technique can be successfully applied to improve the wear resistance of the base alloy, (14) and Elmkhah et al (15) studied HiPIMS-TiN coatings, which have a well-defined dense noncrystalline structure and not only are smoother but also have superior passivation and better protect the substrate against the ingress of aggressive anions than the substrate itself.…”

Section: Introductionmentioning

confidence: 99%

Development of Physical Vapor Deposition Technique and Testing on Ceramics and CoCrMo Alloys

Lai,

Chang

2024

Sensors and Materials

View full text Add to dashboard Cite

In this study, TiN thin films were coated on CoCrMo alloys and ceramic samples using vacuum coating technology with high-power impulse magnetron sputtering (HiPIMS), which was followed by coating at 100 and 200 °C to a thickness of 250, 500 or 750 nm to enhance the characteristics of the coated alloys. Through X-ray diffraction measurements, scanning electron microscopy, and microscale hardness testing, the structural, morphological, and mechanical characteristics of the CoCrMo and ceramic samples coated with TiN films were investigated in detail. The experimental results revealed that a smooth surface can be achieved on the film of 250 nm thickness and indicated that the TiN film with the smoother surface, formed by the vacuum coating method, has a higher hardness. It was also found that the TiN film prepared by coating at 200 °C had the smoothest surface and the highest hardness (365.64 HV0.5), leading to enhanced mechanical properties of the CoCrMo alloys. In the ceramic samples, the TiN film prepared by coating at 100 °C had the smoothest surface and the highest hardness (376.81 HV0.5). In addition, the vacuum coating process is helpful for improving the mechanical properties of TiN coating. The TiN materials are used in many sensor applications, and sensor applications can be realized using TiN/CoCrMo materials. In the future, we will study the sensing performance of TiN sensors fabricated on CoCrMo alloys, as well as implants made using the coated alloys. Then, we will further study circuit substrates, heat-resistant sensors, and corrosion-and wear-resistant parts that can be applied with TiN/Al 2 O 3 materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Physical Vapor Deposition Technique and Testing on Ceramics and CoCrMo Alloys

Lai,

Chang

2024

Sensors and Materials

View full text Add to dashboard Cite

show abstract

“…[10][11][12][13][14] Recent developments in the deposition techniques, such as high impulse magnetron sputtering (HiPIMS) and its variations (dual HiPIMS, continuous-HPMS) and modulated pulsed power magnetron sputtering (MPP), are proposed and heavily investigated for less rough, defective, and more compact coatings. [15][16][17][18][19][20][21][22] Nevertheless, the corrosion protection ability of coatings deposited under standard, conventional methods is still limited.…”

Section: Introductionmentioning

confidence: 99%

Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

Avcı

Kazmanlı

Evren

et al. 2023

Materials & Corrosion

View full text Add to dashboard Cite

The inherent defective morphology of the physical vapor deposition (PVD) hard coatings limits their corrosion protective ability. We examined the impact of nitride‐based PVD coatings, including TiN, TiAlN, and CrN deposited on inert substrates by cathodic arc PVD method (CA‐PVD), on the galvanic corrosion of carbon steel. Their contribution was evaluated by zero‐resistance ammeter (ZRA) and electrochemical impedance spectroscopy (EIS) in 3.5 wt.% NaCl at pH 2 and 6, with and without aeration. The results indicated the prominent role of the coating type and the coupling environment on the generated galvanic currents. Immersion tests for the TiN‐, TiAlN‐, and CrN‐coated steel cross‐sections visually verified these results. The galvanic current contribution was distinct in environments where oxygen reduction is the dominant cathodic reaction. However, the layers' contribution to galvanic corrosion was minimal in deaerated acidic solutions, which is attributed to the high bonding strength of adsorbed intermediates to the coating surfaces.

show abstract

Unraveling the role of sintering temperature on physical, structural and tribological characteristics of ball milled Co28Cr6Mo biomaterial based alloy

Farah,

Fellah,

Bouras

et al. 2023

Journal of Engineering Research

View full text Add to dashboard Cite

Correlation between the microstructure and corrosion performance of the HIPIMS nitrided bio-grade CoCrMo alloy

Cited by 5 publications

References 61 publications

Development of Physical Vapor Deposition Technique and Testing on Ceramics and CoCrMo Alloys

Development of Physical Vapor Deposition Technique and Testing on Ceramics and CoCrMo Alloys

Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

Unraveling the role of sintering temperature on physical, structural and tribological characteristics of ball milled Co28Cr6Mo biomaterial based alloy

Contact Info

Product

Resources

About