Influence of microstructural modifications induced by ultrasonic impact treatment on hardening and corrosion behavior of wrought Co-Cr-Mo biomedical alloy

Petrov, Yu. N.; Prokopenko, G.I.; Mordyuk, B.N.; Vasylyev, M. O.; Voloshko, S. М.; Skorodzievski, V.S.; Filatova, V.S.

doi:10.1016/j.msec.2015.09.004

Cited by 53 publications

(13 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The beneficial role of the nitrogen on the corrosion resistance of the CoCrMo alloy or its composites after plasma nitriding or nitrogen implantation has been reported in the literature. [45,47,48] The samples in these studies exhibited the lowest deterioration after the corrosion tests and limited metal ions released, demonstrating their feasibility as biomedical implants.…”

Section: B Influence Of the Nitriding Oxidizing And Double Treatment On The Corrosion Resistancementioning

confidence: 73%

The Influence of Plasma-Based Nitriding and Oxidizing Treatments on the Mechanical and Corrosion Properties of CoCrMo Biomedical Alloy

Noli

Pichon

Öztürk

2018

Metall Mater Trans A

View full text Add to dashboard Cite

Plasma-based nitriding and/or oxidizing treatments were applied to CoCrMo alloy to improve its surface mechanical properties and corrosion resistance for biomedical applications. Three treatments were performed. A set of CoCrMo samples has been subjected to nitriding at moderate temperatures (~400°C). A second set of CoCrMo samples was oxidized at 395°C in pure O 2 . The last set of CoCrMo samples was nitrided and subsequently oxidized under the experimental conditions of previous sets (double treatment). The microstructure and morphology of the layers formed on the CoCrMo alloy were investigated by X-ray diffraction, Atomic Force Microscopy, and Scanning Electron Microscopy. In addition, nitrogen and oxygen profiles were determined by Glow Discharge Optical Emission Spectroscopy, Rutherford Backscattering Spectroscopy, Energy-Dispersive X-ray, and Nuclear Reaction Analysis. Significant improvement of the Vickers hardness of the CoCrMo samples after plasma nitriding was observed due to the supersaturated nitrogen solution and the formation of an expanded FCC c N phase and CrN precipitates. In the case of the oxidized samples, Vickers hardness improvement was minimal. The corrosion behavior of the samples was investigated in simulated body fluid (0.9 pct NaCl solution at 37°C) using electrochemical techniques (potentiodynamic polarization and cyclic voltammetry). The concentration of metal ions released from the CoCrMo surfaces was determined by Instrumental Neutron Activation Analysis. The experimental results clearly indicate that the CoCrMo surface subjected to the double surface treatment consisting in plasma nitriding and plasma oxidizing exhibited lower deterioration and better resistance to corrosion compared to the nitrided, oxidized, and untreated samples. This enhancement is believed to be due to the formation of a thicker and more stable layer.

show abstract

Section: B Influence Of the Nitriding Oxidizing And Double Treatment On The Corrosion Resistancementioning

confidence: 73%

The Influence of Plasma-Based Nitriding and Oxidizing Treatments on the Mechanical and Corrosion Properties of CoCrMo Biomedical Alloy

Noli

Pichon

Öztürk

2018

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…In turn, allergenic reactions and implant failure can occur in the biological environment (Koerten et al, 2001; Nakayama, 1997). In Co–Cr–Mo alloys, their corrosion performance under different solutions used to simulate human fluids indicates a high corrosion resistance coupled with a relatively small passivity region (Casabán Julián & Igual, 2011; Erfanian‐Naziftoosi, Rincón, & López, 2016; Hiromoto et al, 2005; Hsu, Yang, Huang, & Chen, 2005; Petrov et al, 2016; Ren, Zhu, & Chu, 2016; Rodrigues, Broilo, Schaeffer, Knörnschild, & Espinoza, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Other effects such as heat treating or plastic straining have been considered. Petrov et al (Petrov et al, 2016) considered in their work a solution heat treated and water quenched Co–Cr–Mo–C alloy with or without and ultrasonic impact treatment (UIT). The treated alloys where exposed to a saline solution and their corrosion behavior was determined.…”

Section: Introductionmentioning

confidence: 99%

Microstructural evolution and corrosion behavior of a laser surface modified cast Co–Cr–Mo–C alloy

2020

View full text Add to dashboard Cite

A Co-Cr-Mo-C biomedical alloy was processed by investment casting, and its surface was modified using pulsed laser melting. The modified surface underwent rapid solidification, and the exhibited microstructure as well as its corrosion properties were investigated. It was found that the laser surface modified (LSM) Co-Cr-Mo-C alloy possesses enhanced corrosion resistance when compared with the same alloy in the as-cast condition. Microstructural determinations indicated that the LSM Co-Cr-Mo-C alloy exhibited a lack significant solute segregation and a predominantly cellular morphology as a result of the development of a cellular solid-liquid front. The cellular morphology was characterized by a fine distribution of nano-scale M 23 C 6 carbides at the intercellular regions. Moreover, the austenite (γ) to athermal ε-martensite transformation was totally suppressed in the cellular solidified regions. In contrast, the as-cast alloy develops a coarse dendritic microstructure with coarse carbides in the interdendritic regions. Solute segregation is also present, as well as athermal ε-martensite (13 pct). It was found that the corrosion resistance of the LSM alloy in the Ringer solution exhibits improved corrosion potential and a reduced corrosion current density (−281 mV and 0.032 μA/cm 2 , respectively),when compared with the same alloy in the investment as-cast condition (−356 mV and 0.150 μA/cm 2).

show abstract

“…Many studies have shown that the metal ions dissolved from prostheses in body because of the corrosion and wear debris in biological environment cause an allergy and implant failure [13,18]. Investigations on the corrosion characteristics of Co-Cr-Mo-C alloy in different body solutions using potentiodynamic method have been done and shown high corrosion resistivity and small passivity region for this alloy in joint fluid and body fluid simulated environments [1,5,7,[19][20][21]. S. Hiromoto et al [1] considered the effect of forging ratio on corrosion behavior of Co-Cr-Mo alloys in different environment, they found that alloy with low forging ratio shows lower passive current density and also increasing the grain boundaries by forging will decrease the corrosion resistant of alloy.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Rapid Solidification on Microstructure and Corrosion of Advanced Biomaterial Co-Cr-Mo-C Alloy

Erfanian-NazifToosi¹,

López²

2020

J. Mater. Appl.

View full text Add to dashboard Cite

In this research, the microstructure and corrosion properties of rapidly solidified Co-Cr-Mo-C alloy as an advanced biomaterial alloy were studied. The use of rapid solidification casting method represents significant changes in not only the amount of formed e-HCP phase, which is strongly influenced by rapid solidification, but also in electrochemical behavior and solidified structure. In this research, rapid solidified Co-Cr-Mo-C alloy is studied using OM, SEM, EDS, XRD, and dynamic potentiostate. Co-alloy ingots were melted into an induction furnace filled by argon gas and casted into a V-shape sand and chill copper molds to prepare rapid solidified samples and its properties were measured in different cooling rates. The microstructure examination demonstrating the structure of alloy is mainly consist of columnar dendritic structure with the distribution of carbides within primary and secondary dendrites arms and finer dendritic structure along with modified carbide distribution will be achieved by rapid solidification. This structure will improve alloy’s corrosion behavior and reduces its corrosion rate when it is tested in Ringer’s solution as an electrolyte.

show abstract

Influence of microstructural modifications induced by ultrasonic impact treatment on hardening and corrosion behavior of wrought Co-Cr-Mo biomedical alloy

Cited by 53 publications

References 50 publications

The Influence of Plasma-Based Nitriding and Oxidizing Treatments on the Mechanical and Corrosion Properties of CoCrMo Biomedical Alloy

The Influence of Plasma-Based Nitriding and Oxidizing Treatments on the Mechanical and Corrosion Properties of CoCrMo Biomedical Alloy

Microstructural evolution and corrosion behavior of a laser surface modified cast Co–Cr–Mo–C alloy

The Effect of Rapid Solidification on Microstructure and Corrosion of Advanced Biomaterial Co-Cr-Mo-C Alloy

Contact Info

Product

Resources

About