Corrosion resistance of nanostructured titanium

Garbacz, Halina; Pisarek, Marcin; Kurzydłowski, Krzysztof J.

doi:10.1016/j.bioeng.2007.08.007

Cited by 103 publications

(54 citation statements)

References 20 publications

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“…A) As the most simple structure, a various kind of pure metals of high and commercial purity such as aluminum, [87][88][89][90][91][92][93][94] copper, 6,37,[95][96][97][98][99][100][101][102][103][104][105][106] iron, 76,107) titanium, [108][109][110][111][112][113][114] magnesium, 34,72,[115][116][117] have been processed by SPD for corrosion studies. In this simple system, grain size or grain boundary density impacts the corrosion resistance as a primary metallurgical variable with very few other metallurgical changes involved.…”

Section: Pure Metals With High and Commercial Purity (Typementioning

confidence: 99%

“…[108][109][110]112,127,155,[184][185][186] Recently, other SPD processing emerged such as hydraulic extrusion (HE), 111) severe-or cryo-cold rolling. 45,75,76) These SPD processing generates UFG metals in bulk form, but in other processing, UFG or nanocrytallization can be achieved in the surface layer using high power shot blast, 78) ultrasonic peening, 77,79,80) surface mechanical attrition treatment (SMAT), [72][73][74] burnishing/brushing, [82][83][84] and friction stir processing (FSP).…”

Section: General Descriptionmentioning

confidence: 99%

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Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Miyamoto

2016

Mater. Trans.

121

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Corrosion of ultra ne grain (UFG) materials by severe plastic deformation (SPD) is reviewed in light of the existing literature and microstructural change. Fortunately, by holistic survey of the literature, it seems likely that grain re nement by SPD, while enhancing mechanical properties, does not compromise the overall corrosion resistance, and in many case, improve it in comparison with coarse-grained counterparts, although there are some contradictory results within the same materials and same environment. The degree of impact of UFG formation on corrosion is highest in stainless steels followed by aluminum and magnesium alloys whereas it is relatively marginal in pure copper and titanium. The effect of UFG formation by SPD on corrosion is imparted by not only grain re nement, but also other microstructural change occurring commonly in SPD in general and unique to each speci c SPD method. In this review, an attention is paid speci cally to the former case, and this includes shuf ing or redistribution of chemical inhomogeneity into a ner scale, deformation-induced grain boundaries and high internal stress stemming from these grain boundaries. The literature on stress corrosion cracking (SCC) of UFG materials are de nitely insuf cient to nd the general trends, more studies are waited.

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Section: Pure Metals With High and Commercial Purity (Typementioning

confidence: 99%

Section: General Descriptionmentioning

confidence: 99%

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Miyamoto

2016

Mater. Trans.

121

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“…Fo r b i o m a t e r i a l a p p l i c a t i o n s, t h e electrochemical behavior of titanium covered with titanium oxide nanotube was investigated in simulated body solutions [79][80][81][82][83] . Also, the effects of nanotopographical on the bioactivity of titanium were studied in virto 55,70,[84][85][86][87][88] and in vivo 4,89,90 .…”

Section: Some Studies On the Titanium Oxide Nanotubementioning

confidence: 99%

The Electrochemical Behavior of Titanium Improved by Nanotubular Oxide Formed by Anodization for Biomaterial Applications: A Review

Al-Swayih¹

2016

Orient. J. Chem

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Titanium oxide nanotube is gaining prominence in many applications like solar energy, sensors, catalyst and biomaterials. In this paper, we briefly review the electrochemical behavior of titanium oxide nanotube prepared by anodization in simulated body fluids. The electrochemical behavior of TiO 2 nanotube depends on its morphology and surface properties. When titanium oxide nanotube formed by anodization, these surface properties are depending strongly on two factors, the parameters of anodization process and the conditions of employed electrolyte. These factors must be chosen in correct manner to optimized titanium oxide nanotube with desired properties for specific application.

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“…There are relatively few works devoted to the studies on corrosion resistance of ferrous ultrafine-grained steels [10,11], however, the susceptibility of nanocrystalline bainite for corrosion resistance has not been clearly defined so far. The corrosion resistance depends on both: the kind of chemical and phase composition of the material as well as the corrosion environment and the corrosion type which affects the material [10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…The corrosion resistance depends on both: the kind of chemical and phase composition of the material as well as the corrosion environment and the corrosion type which affects the material [10][11][12][13][14][15][16][17][18][19][20]. That is why, the authors took an attempt to study the corrosion resistance in the acidic and neutral corrosion environment of the steel 67SiMnCr6-6-4 with a various microstructures obtained through two kinds of isothermal annealing at a temperature in the range of bainitic transformation, in comparison to the conventional quenching and tempering heat treatments applied for this steel.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of The Bearing Steel 67SiMnCr6-6-4 with Nanobainitic Structure

Skołek¹,

Dudzińska²,

Kamiński³

et al. 2015

Archives of Metallurgy and Materials

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The paper describes a comparative study of the corrosion resistance of bearing steel 67SiMnCr6-6-4 after two kinds of nanostructuring treatments and two kinds of conventional quenching and tempering treatments. The nanostructuring treatment consisted of austempering with an isothermal quenching at 240• C and 300• C. The conventional heat treatment consisted on quenching and tempering at 350• C for 1 h and quenching and tempering at 550• C for 1 h. Time and temperature of tempering was chosen so that the hardness of both samples (nanostructured as well as quenched and tempered) was similar. The microstructure of steel after each heat treatment was described with the use of transmission electron microscopy (TEM). It was shown, that the austempering conducted at 240• C produced homogenous nanobainitic structure consisting of carbide-free bainite plates with nanometric thickness separated by the layers of retained austenite. The austempering at 300• C produced a sub-micrometric carbide-free bainite with retained austenite in form of layers and small blocks. The conventional heat treatments led to a tempered martensite microstructure. The corrosion resistance study was carried out in Na 2 SO 4 acidic and neutral environment using potentiodynamic and electrochemical impedance spectroscopy (EIS) methods. The corrosion resistance of nanostructured steel samples were compared to the steel samples with tempered martensite. The obtained results indicate, that the corrosion resistance of bearing steel with nanobainitic structure is similar to steel with tempered martensite in both acidic and neutral environment. This means that the high density of intercrystalline boundaries in nanobinite does not deteriorate the corrosion properties of the bearing steel.Keywords: bearing steel, austempering, nanocrystalline structure, corrosion resistance, nanobainite W pracy przedstawiono porównawcze badania odporności korozyjnej łożyskowej stali 67SiMnCr6-6-4 poddanej dwóm typom procesów nanostrukturyzacji oraz dwóm typom konwencjonalnych obróbek hartowania i odpuszczania. Obróbka nanostrukturyzacji polegała na hartowaniu z przystankiem izotermicznym w temperaturze 240• C oraz 300 • C. Konwencjonalna obróbka cieplna obejmowała hartowanie i odpuszczanie w temperaturze 350• C przez 1 h oraz hartowanie i odpuszczanie w temperaturze 550• C przez 1 h. Czas i temperatura odpuszczania dobrane były tak, aby twardość próbek (po nanostrukturyzacji oraz hartowaniu i odpuszczaniu) była zbliżona. Mikrostruktura stali po różnych obróbkach cieplnych określona była przy użyciu transmisyjnego mikroskopu elektronowego. Wykazano, że hartowanie izotermiczne w temperaturze 240• C pozwoliło na wytworzenie jednorodnej struktury nanobainitycznej, zbudowanej z płytek bezwęglikowego bainitu, porozdzielanych warstwami austenitu szczątkowego. Podczas hartowania izotermicznego w temperaturze 300• C wytworzono bainit bezwęgli-kowy o submikronowej wielkości ziaren z austenitem szczątkowym w postaci warstw oraz niewielkich bloków. W wyniku konwencjonalnych obróbek hart...

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Corrosion resistance of nanostructured titanium

Cited by 103 publications

References 20 publications

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

Corrosion of Ultrafine Grained Materials by Severe Plastic Deformation, an Overview

The Electrochemical Behavior of Titanium Improved by Nanotubular Oxide Formed by Anodization for Biomaterial Applications: A Review

Corrosion Resistance of The Bearing Steel 67SiMnCr6-6-4 with Nanobainitic Structure

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