The influence of hexametaphosphate on formation of zinc phosphate coatings for deep drawing of steel tubes

Burokas, V.; Martušienė, A.; Bikulčius, G.

doi:10.1016/s0257-8972(98)00359-4

Cited by 22 publications

(13 citation statements)

References 1 publication

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“…It is clear that the low-temperature phosphating processing with the addition of HAS is quite different from the previous studies [1][2][3][4][5][14][15][16][17].…”

Section: Phosphating Reaction Mechanismcontrasting

confidence: 61%

“…Zinc phosphate coatings are widely used during extrusion and drawing of steel and non-ferrous metal, due to its economy and ability to afford excellent corrosion resistance [1,2], good wear resistance and good lubricative properties [3][4][5]. Many original work and patents have been reported in this field [6,7], however, most phosphate coatings are prepared with common accelerator agent (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics of a fast low-temperature zinc phosphating coating accelerated by an ECO-friendly hydroxylamine sulfate

Fang

Jiang

Tan

et al. 2010

Surface and Coatings Technology

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“…It is clear that the low-temperature phosphating processing with the addition of HAS is quite different from the previous studies [1][2][3][4][5][14][15][16][17].…”

Section: Phosphating Reaction Mechanismcontrasting

confidence: 61%

Section: Introductionmentioning

confidence: 99%

Characteristics of a fast low-temperature zinc phosphating coating accelerated by an ECO-friendly hydroxylamine sulfate

Fang

Jiang

Tan

et al. 2010

Surface and Coatings Technology

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“…[1,5,6]. Polyphosphates also find their application as additives during cleaning, degreasing and passivation of metal [1,2], and also in zinc -phosphate solutions for achieving small fine crystalline coats [6,7], improvement of their protective properties [8,9] and as anticorrosion paint pigments [10][11][12]. In addition, steel treatment using polyphosphates doesn't interfere with application of enamel, oil, paint and other materials [1,2].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Research of the mechanism of formation and properties of tripolyphosphate coating on the steel basis

Vlasova

Кovalenko

Kotok

et al. 2016

EEJET

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During the manufacturing process, the corrosion protection of metal goods is achieved with the use of an aqueous solution of contact inhibitors of atmospheric corrosion that form a passivating layer on the metal surface. Nitrites, chromates, silicate and phosphates are amongst the most common water-soluble inhibitors. Pipe plants use soda-nitrite, trisodiumphosphate and chromium-containing solu- Досліджений механізм формуван-ня, захисні властивості, мікрострук-тура, фазовий склад триполіфосфат-них покриттів на сталі. Покриття наносили в потенциодинамічному та потенціостатичному режимах в вод-ному розчині натрію триполіфосфа-ту. Запропонований електрохімічний ступінчастий механізм формування триполіфосфатного покриття. Вста-новлено, що покриття з високими захисними властивостями формуєть-ся в умовах повної пасивації при потен-ціодинамічному режимі та склада-ється з двох шарів: перший -тонкий, щільний шар, що містить кристаліч-ну фазу фосфатної природи, і другий -товстий гідрофільний шар, здатний до висихання Ключові слова: натрію триполі-фосфат, анодна крива, пасиваційне покриття, захисні властивості, меха-нізм формування Исследован механизм формирова-ния, защитные свойств, микрострук-тура, фазовый состав триполифос-фатных покрытий на стали. Покрытия наносили в потенциодинамическом и потенциостатическом режимах в вод-ном растворе триполифосфата нат-рия. Предложен электрохимический ступенчатый механизм формирова-ния триполифосфатного покрытия. Установлено, что покрытие с высо-кими защитными свойствами форми-руется в условиях полной пассивации при потенциодинамическом режиме и состоит из двух слоев: первый -тон-кий, плотный слой, содержащий кри-сталлическую фазу фосфатной приро-ды, и второй -толстый гидрофильный слой, способный к высыханию Ключевые слова: триполифосфат натрия, анодная кривая, пассиваци-онное покрытие, защитные свойства, механизм формирования UDC 620.197.3 MATERIALS SCIENCE RESEARCH OF THE

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“…Using galvanic coupling technique, these low temperature processes have been developed to perform as well as the high temperature processes with other associated advantages, such as shorter start-up time, minimal evaporation losses, less wear on equipment, a better working environment, and avoidance of the use of heating coils. [5][6][7] The utility of galvanic coupling on the phosphatability of mild steel (MS) with the other cathode materials such as titanium, copper, brass, nickel, and stainless steel was established recently. [8][9][10][11] It is understandable that galvanic coupling accelerates the initial metal dissolution reaction and enables an earlier attainment of the point of incipient precipitation (PIP) i.e., the point at which saturation of metal dissolution occurs and higher coating weight results.…”

Section: Introductionmentioning

confidence: 99%

Polarization and impedance studies on zinc phosphate coating developed using galvanic coupling

et al. 2011

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Galvanic coupling technique is capable of producing coatings of desired thickness. Good quality coatings can be produced at low temperature. Galvanic coupling of mild steel (MS) with the other cathode materials such as titanium (Ti), copper (Cu), brass (BR), nickel (Ni), and stainless steel (SS) accelerates iron dissolution, enables quicker consumption of free phosphoric acid and facilitates an earlier attainment of point of incipient precipitation, resulting in a higher amount of coating formation. In the present investigation, potentiodynamic polarization and electrochemical impedance spectra on MS substrates phosphated using galvanic coupling are studied. This study reveals that MS substrates phosphated under galvanically coupled condition possess better corrosion resistance than the substrates phosphated under uncoupled condition.

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The influence of hexametaphosphate on formation of zinc phosphate coatings for deep drawing of steel tubes

Cited by 22 publications

References 1 publication

Characteristics of a fast low-temperature zinc phosphating coating accelerated by an ECO-friendly hydroxylamine sulfate

Characteristics of a fast low-temperature zinc phosphating coating accelerated by an ECO-friendly hydroxylamine sulfate

Research of the mechanism of formation and properties of tripolyphosphate coating on the steel basis

Polarization and impedance studies on zinc phosphate coating developed using galvanic coupling

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