Corrosion resistance of three austenitic stainless steels for biomedical applications

Terada, Maysa; Antunes, Renato Altobelli; Padilha, Angelo Fernando; Costa, Isolda

doi:10.1002/maco.200704070

Cited by 15 publications

(14 citation statements)

References 10 publications

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“…In this way, the coated implants will not only have the good mechanical properties of the substrate but also an enhanced osseointegration and bioactivity due to the calcium phosphate layer [96]. Terada et al [97] have evaluated the significant effects of 316L SS on the clinical success and Fathi et al [98] studied the bone tissue response and histopathological results of HAP coated/ uncoated metallic implants (316L SS and Ti) in animals. The results showed that different substrates had pronounced effects on the histopathological response to HAP coated on different implants with beneficial corrosion resistance of the coatings.…”

Section: Corrosion In Dentistrymentioning

confidence: 99%

Corrosion aspects of metallic implants — An overview

Balamurugan

Rajeswari

Balossier

et al. 2008

Materials & Corrosion

165

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The ability to replace or augment diseased body parts totally or partially has improved both the quality and life span of human population. The decline in surgical risks during recent decades has encouraged the development of more complex procedures for prosthetic implantation. Additionally, a variety of extracorporeal devices, such as the heart, lung and blood dialysis machines are used routinely, but these prosthetic elements have several limitations. Hence, research projects are currently underway to overcome the limitations of synthetic materials by developing formulations with varying properties, such as asymptomatic, longterm function in the human physiological environment, etc., to meet the needs of biomedical surgeons. This review focuses on the several biomaterials corrosion and its measures to prevent corrosion.

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Section: Corrosion In Dentistrymentioning

confidence: 99%

Corrosion aspects of metallic implants — An overview

Balamurugan

Rajeswari

Balossier

et al. 2008

Materials & Corrosion

165

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“…Ti and Ti alloys are by far the most used materials for body implants; however, their excessive prices make them unaffordable to the health public system of underdeveloped countries. Thus researches on biocompatibility and corrosion resistance on simulating body fluid solutions of less expensive materials are under way in many countries [1,2]. Milosev and Strehblow [3] studied the corrosion behavior of stainless steels in a physiological solution and concluded that the properties of the passive layer, account for the corrosion resistance of orthopedic implants produced with these materials.…”

Section: Introductionmentioning

confidence: 99%

Use of SECM to study the electrochemical behavior of DIN 1.4575 superferritic stainless steel aged at 475 °C

Terada

Padilha

Simões

et al. 2009

Materials & Corrosion

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In order to lower the excessive costs of metallic prosthesis materials alternatives to Ti and Ti alloys have been searched. In this study, the corrosion resistance of the DIN 1.4575 superferritic stainless steel, either solution annealed or solution annealed and aged at 475 8C for periods varying from 100 to 1080 h, was investigated by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization methods in Hanks' solution. The solution annealed and the aged for 1080 h samples were also tested using scanning electrochemical microscopy (SECM) in a 0.1 mol/L NaCl solution at 25 8C. The EIS results showed that the corrosion resistance of the DIN 1.4575 steel decreases with heat treatment time at 475 8C probably due to alpha prime formation. Besides the diminution of the overall impedance values, the low frequency limit of the Nyquist diagrams show a progressive change from an almost capacitive response to a resistive behavior as the heat treatment time increases. Pitting corrosion resistance also decreased with aging time at 475 8C.

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“…As an example, the articulated implants that are exposed to high loads and severe wear due to the patient's movement can be mentioned. Moreover, the degradation of metallic implants inside the human body may not only impair the integrity of the material, but also generate biocompatibility problems such as infection or allergic reactions, leading to premature removal of the implant (Rondelli et al 1997, Terada et al 2007. The derived detritus is harmful to the tissues that are in contact with the implant and can be taken into the bloodstream, settling in organs and impairing their functions.…”

Section: Introductionmentioning

confidence: 98%

Customised titanium implant fabricated in additive manufacturing for craniomaxillofacial surgery

Jardini

Larosa

Zavaglia

et al. 2014

Virtual and Physical Prototyping

108

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Customised implants manufacture has always presented difficulties which result in high cost and complex fabrication, mainly due to patients' anatomical differences. The solution has been to produce prostheses with different sizes and use the one that best suits each patient. Additive manufacturing (AM) as a technology from engineering has been providing several advancements in the medical field, particularly as far as fabrication of implants is concerned. The use of additive manufacturing in medicine has added, in an era of development of so many new technologies, the possibility of performing the surgical planning and simulation by using a threedimensional (3D) physical model, very faithful to the patient's anatomy. AM is a technology that enables the production of models and implants directly from the 3D virtual model (obtained by a Computer-Aided Design (CAD) system, computed tomography or magnetic resonance) facilitating surgical procedures and reducing risks. Furthermore, additive manufacturing has been used to produce implants especially designed for a particular patient, with sizes, shapes and mechanical properties optimised, for areas of medicine such as craniomaxillofacial surgery. This work presents how AM technologies were applied to design and fabricate a biomodel and customised implant for the surgical reconstruction of a large cranial defect. A series of computed tomography data was obtained and software was used to extract the cranial geometry. The protocol presented was used for creation of an anatomic biomodel of the bone defect for the surgical planning and, finally, the design and manufacture of the patient-specific implant.

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Corrosion resistance of three austenitic stainless steels for biomedical applications

Cited by 15 publications

References 10 publications

Corrosion aspects of metallic implants — An overview

Corrosion aspects of metallic implants — An overview

Use of SECM to study the electrochemical behavior of DIN 1.4575 superferritic stainless steel aged at 475 °C

Customised titanium implant fabricated in additive manufacturing for craniomaxillofacial surgery

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