Experimental investigation on optimal anodising parameters of nanopore preparation process on the stainless steel surface

Wang, Yuanlong; Guo, Ran; Zhou, Xiong; Hu, Guanghong

doi:10.1080/1478422x.2020.1747759

Cited by 7 publications

(9 citation statements)

References 25 publications

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“…Recently, Wang et al [ 45 ] reported on the optimization of anodising parameters. Rich morphology (randomly arranged pore-like structures) was achieved on the surface of stainless steel 304 by anodisation using an electrolyte composed of nitric acid, sulfuric acid, hydrochloric acid, sodium chloride and urea.…”

Section: Literature Surveymentioning

confidence: 99%

Nanoporous Stainless Steel Materials for Body Implants—Review of Synthesizing Procedures

et al. 2022

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Despite the inadequate biocompatibility, medical-grade stainless steel materials have been used as body implants for decades. The desired biological response of surfaces to specific applications in the body is a highly challenging task, and usually not all the requirements of a biomaterial can be achieved. In recent years, nanostructured surfaces have shown intriguing results as cell selectivity can be achieved by specific surface nanofeatures. Nanoporous structures can be fabricated by anodic oxidation, which has been widely studied for titanium and its alloys, while no systematic studies are so far available for stainless steel (SS) materials. This paper reviews the current state of the art in the anodisation of SS; correlations between the parameters of anodic oxidation and the surface morphology are drawn. The results reported by various authors are scattered because of a variety of experimental configurations. A linear correlation between the pores’ diameter anodisation voltage was deduced, while no correlation with other processing parameters was found obvious. The analyses of available data indicated a lack of systematic experiments, which are recommended to understand the kinetics of pore formation and develop techniques for optimal biocompatibility of stainless steel.

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Section: Literature Surveymentioning

confidence: 99%

Nanoporous Stainless Steel Materials for Body Implants—Review of Synthesizing Procedures

et al. 2022

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“…This study used PPS as the polymer. PPS is a black granular material with an average molecular weight of 4000-5000 and a density of 1.3-1.8 g/cm 3 . Table 5 lists the main physical parameters of PPS.…”

Section: Materials For the Injection Molding Experimentsmentioning

confidence: 99%

“…Due to the demand for lightweight products, the performance of a single material can no longer meet the needs of the market, and the composite molding of multiple materials has become a trend. Composite molding mainly includes composite molding between dissimilar metals, such as explosive welded joints between Al and Cu [ 1 , 2 ], and metal–polymer composite molding, such as stainless steel and PPS [ 3 ]. This paper focus on the latter and there are three types of metal–polymer composite molding technologies: multi-component injection molding, metal–polymer bond synthesis, and metal–polymer direct molding [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The bonding strength rises with the increase of roughness of metal surface [ 5 , 7 ]. Anodic oxidation is a simple and common method to prepare microstructure on metal surface, which is widely applied to aluminum [ 8 , 9 , 10 , 11 , 12 ], stainless steel [ 3 , 13 ], titanium [ 14 , 15 ], tin [ 16 ], and other metals. The basic principle is to use acid electrolyte to corrode micropores on metal surface.…”

Section: Introductionmentioning

confidence: 99%

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Research on Surface Treatment and Interfacial Bonding Technology of Copper–Polymer Direct Molding Process

et al. 2021

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To realize the connection of copper and Polyphenylene sulfide (PPS) by metal–polymer direct molding, this paper combined anodic oxidation and chemical corrosion to treat the surface of copper, and carried out the injection molding experiment. An orthogonal experimental arrangement was used to identify the optimal electrolyte and etching solution for preparing a microstructure on a copper surface. The bonding and fracture mechanisms of the copper–polymer assembly were investigated through injection molding experiment and SEM technology. The results revealed that the phosphoric acid concentration had the most significant effect on the microstructure quality and etching solution containing 20% phosphoric acid produced a uniform microstructure with 25.77% porosity and 5.52 MPa bonding strength. Meanwhile, SEM images of the interface from bonding to fracture in the copper–polymer assembly indicated a well-filled polymer in the microstructure with a mainly cohesive fracture mode.

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“…Unlike electropolishing only to removing the layer formed on the metal surface during mechanical treatment (Babilas et al , 2016), anodization could thicken the natural oxide layer on the metal surface (Wang et al , 2020a, 2020b) and change tremendously the chemical and structural properties of the resulting surface (Babilas et al ,2016; Wang et al , 2020a, 2020b). Moreover, the chromium-rich passive film formed by anodization of SS behaves a stable oxide layer and excellent adhesion between the oxide layer and the substrate, which mitigates effectively the penetration of corrosive ions toward the surface atoms (Saha et al , 2019).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion resistance of thermal oxide formed on anodized stainless steel

Deng

Liu²,

et al. 2021

ACMM

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Purpose The purpose of this paper is to investigate and explain thermal oxide effect on electrochemical corrosion resistance anodized stainless steel (SS). Design/methodology/approach Electrochemical corrosion resistance of thermal oxides produced on anodized 304 SS in air at 350°C, 550°C, 750°C and 950°C in 3.5 wt.% NaCl solution have been investigated by dynamic potential polarization, EIS and double-loop dynamic polarization. Anodized 304 SS were obtained by anodization at the constant density of 1.4 mA.cm-2 in the solution containing 28.0 g.L-1H3PO4, 20.0 g.L-1C6H8O7, 200.0 g.L-1H2O2 at 70°C for 50 min. SEM and EDS had been also used to characterize the thermal oxides and passive oxide. Findings Interestingly, anodized 304SS with thermal oxide produced at 350°C displayed more electrochemical corrosion and pitting resistance than anodized 304 SS only with passive oxide, as related to the formation of oxide film with higher chromium to iron ratio. Whereas, anodized 304SS with thermal oxide formed at 950°C shows the worse electrochemical corrosion and pitting resistance among those formed at the high temperatures due to thermal oxide with least compact. Originality/value When thermally oxidized in the range of 350°C–950°C, electrochemical corrosion and pitting corrosion resistance of anodized 304 SS decrease with the increase of temperature due to less compactness, more defects of thermal oxide.

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Experimental investigation on optimal anodising parameters of nanopore preparation process on the stainless steel surface

Cited by 7 publications

References 25 publications

Nanoporous Stainless Steel Materials for Body Implants—Review of Synthesizing Procedures

Nanoporous Stainless Steel Materials for Body Implants—Review of Synthesizing Procedures

Research on Surface Treatment and Interfacial Bonding Technology of Copper–Polymer Direct Molding Process

Electrochemical corrosion resistance of thermal oxide formed on anodized stainless steel

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