The surface composition of sintered stainless steel containing noble alloying elements exposed to a H2SO4 environment

Peled, P.; Itzhak, D.

doi:10.1016/0010-938x(91)90064-v

Cited by 34 publications

(17 citation statements)

References 9 publications

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“…Noh et al [91] have reported that both the enrichment of chromium oxide on the surface and removal of MnS from the surface of 316L SS take place during nitric acid passivation. The examination of H 2 SO 4 passivation of SS by Peled and Itzhak [92] also ensures a passive film, which resists pit initiation.…”

Section: Corrosion In Dentistrymentioning

confidence: 99%

Corrosion aspects of metallic implants — An overview

Balamurugan

Rajeswari

Balossier

et al. 2008

Materials & Corrosion

166

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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

166

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“…Similarly, impedance and XPS studies of surface modification of 316LVM stainless steel after passivation by Wallinder et al [5] suggested that the passivation treatment significantly increases the corrosion resistance due to the high Cr content in the passive film. Examination of H 2 SO 4 passivation of stainless steels by Peled et al [10] also ensures a passive film which resists pit initiation.…”

Section: Introductionmentioning

confidence: 98%

Electrochemical, SEM and XPS investigations on phosphoric acid treated surgical grade type 316L SS for biomedical applications

Prabakaran

Rajeswari

2008

J Appl Electrochem

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A simple surface pre-treatment method was attempted to establish a stable passive layer on the surface of surgical grade stainless steel (SS) of type 316L for biomedical applications. Surgical grade type 316L SS specimens were subjected to H 3 PO 4 treatment for 1 h by completely immersing them in the acid solutions to develop a passive barrier film. The effect of various concentrations of phosphoric acid on the localized corrosion resistance behavior of type 316L SS was investigated through electrochemical techniques using cyclic polarization studies and electrochemical impedance spectroscopy (EIS). X-ray photoelectron spectroscopy (XPS) was used to evaluate the nature and composition of the passive films. The surface morphology and relative elemental composition of the untreated and acid treated surfaces subjected to anodic polarization was studied by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) techniques, respectively. Compared with untreated (pristine) 316L SS, the 40% acid treated surface formed a stable passive layer that had superior corrosion resistance.

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“…It has been reported that noble elements such as Pd can enrich at the bottom of attacked sites and change the kinetics of the electrochemical reactions. [14][15][16][17] SS welds using the Ni-10Cu-1Pd alloy exhibited good resistance to localized attack, but these welds are composed of several different areas including base metal, weld metal, and complex welding interface with a full range of dilution. As the dilution increased, E B increased, but E RP decreased considerably because higher dilution made the alloy more like stainless steel.…”

Section: Crevice Corrosion Testsmentioning

confidence: 99%

Development of a Chromium-free Consumable for Austenitic Stainless Steels: Effect of Dilution and the Behavior of Bead-on-plate Welds

2006

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A Ni-10Cu-1Pd alloy was studied as a potential Cr-free consumable for welding austenitic stainless steels. The corrosion behavior of as-cast buttons with this base composition and alloys diluted by Type 304L stainless steel at levels of 4 to 84 % were investigated in Cl Ϫ solutions. Actual welds, made using a beadon-plate welding technique, were evaluated using electrochemical testing and in long term crevice corrosion exposure testing. Ni-10Cu-1Pd alloy across the entire dilution range exhibited higher repassivation potential than Type 304L stainless steel in 0.1 M NaCl solution. The repassivation potential was also higher for 0, 25, and 50 % dilution levels in aerated solutions with Cl Ϫ concentrations of 105-35 000 ppm. The breakdown behavior of the bead-on-plate welds was similar to that of conventional welds made with Type 308L filler metal. After 31 d exposure of samples with crevice-formers in 500 and 1 000 ppm Cl Ϫ solutions, the bead-on-plate weld showed one shallow attack in 1 000 ppm Cl Ϫ , but the 308L weld was attacked both in 500 and 1 000 ppm Cl Ϫ with many deep pits.

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The surface composition of sintered stainless steel containing noble alloying elements exposed to a H2SO4 environment

Cited by 34 publications

References 9 publications

Corrosion aspects of metallic implants — An overview

Corrosion aspects of metallic implants — An overview

Electrochemical, SEM and XPS investigations on phosphoric acid treated surgical grade type 316L SS for biomedical applications

Development of a Chromium-free Consumable for Austenitic Stainless Steels: Effect of Dilution and the Behavior of Bead-on-plate Welds

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