Preparation and oxidation of an Y2O3-dispersed chromizing coating by pack cementation at 800°C

Zhou, Yinggang; Chen, H.; Zhang, H.; Wang, Y.

doi:10.1016/j.vacuum.2007.10.010

Cited by 45 publications

(13 citation statements)

References 21 publications

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“…However, a relatively low surface hardness value in this paper was due to a thick Cr-deposition layer (see Fig. 5b) on the coating surface which resulted from a lower formation temperature of 1123 K than in other works [11][12][13][14]. In accordance with the measuring points along the depth direction of the coating, the microhardness curve of the chromizing coating was plotted, as given in Fig.…”

Section: Wear Resistancementioning

confidence: 76%

“…Chromizing process has long been found to successfully improve the corrosion and wear resistance of steel components economically since the year of 1919. Many reports have addressed the studies and applications of chromizing to improve the surface performance of steel components [10][11][12][13][14][15][16][17]. Chromizing is distinguished by providing a compromise between the cost and the performance of materials [9].…”

Section: Introductionmentioning

confidence: 99%

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Plasma surface chromizing of P110 oil casing tube steel for improving corrosion and wear resistance purposes

LIN¹,

ZHOU²,

ZHOU³

et al. 2016

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In this work, chromizing coating was prepared on P110 oil casing tube steel by means of plasma surface chromizing to improve its surface performance and prolong its service lifetime. Electrochemical experiments, including open circuit potential (OCP) and potentiodynamic polarization were conducted in CO2-saturated simulated oilfield brine to exam the corrosion resistance of the chromizing coating. Wear resistance of the chromizing coating was investigated using reciprocating type tribometer under dry sliding against GCr15 steel counterpart. The experimental results obtained herein revealed that chromizing coating was uniform and compact; the obtained coating exhibited higher open circuit potential and lower corrosion current density in comparison to P110 steel. Chromizing coating with higher surface hardness showed better wear resistance than that of P110 steel. Subsequently, plasma surface chromizing could be considered as a potentially effective method for improving the surface performance of P110 steel.

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Section: Wear Resistancementioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Plasma surface chromizing of P110 oil casing tube steel for improving corrosion and wear resistance purposes

LIN¹,

ZHOU²,

ZHOU³

et al. 2016

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show abstract

“…In Table 4 Chemical composition of the sites marked by arrows in Fig. 8b- [64][65][66][67][68][69][70][71][72][73]; nevertheless no single mechanism can explain all of the experimental findings.…”

Section: Static Oxidationmentioning

confidence: 99%

“…11: (1) to lower the scale growth rate and (2) to change the phase constituents of the scale. For chromiaforming systems, several groups [66][67][68][69][70][71][72][73] have confirmed that RE ions mainly segregated at the oxide grain boundaries by many marker experiments and TEM characterization. In this case, the segregated Y ions could block the transport of metal (M) cations and oxygen anions along the grain boundaries through a blockage effect, as shown in Fig.…”

Section: Static Oxidationmentioning

confidence: 99%

Development of silicide coatings over Nb–NbCr2 alloy and their oxidation behavior at 1250 °C

Qiao

Guo

2014

Surface and Coatings Technology

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“…Thus, processes for instance, aluminizing, chromizing and carburizing have been successfully carried out by pack cementation [19][20][21] . Chromizing, has been widely employed to improve the wearing resistance, corrosion resistance and high temperature oxidation of steel components, but its applications in oil casing tube steel have not received much attention [22,23] .…”

Section: Introductionmentioning

confidence: 99%

Corrosion behaviors of P110 steel and chromium coating in CO2-saturated simulated oilfield brine

Lin

Xie

Zhou

et al. 2011

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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The protective chromium coating was prepared on P110 steel by employing pack cementation. The corrosion behaviors of P110 steel and the obtained coating in CO 2 -saturated simulated oilfield brine were studied by static complete immersion tests and electrochemical measurements. The corrosion attacks of the samples were determined by mass loss, corroded surface morphologies, corrosion products, and results of electrochemical measurements. The experimental results showed that the coating was uniform, continuous and compact. The chromium coating was slightly corroded, and the mass loss and corrosion rate of the coating were far lower than those of P110 steel. Chromium coating has higher self-corroding potential and lower corrosion current density than P110 steel in accordance with the electrochemical tests results. Taken as a whole, chromizing treatment has significantly improved the corrosion resistance of P110 steel.

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Preparation and oxidation of an Y2O3-dispersed chromizing coating by pack cementation at 800°C

Cited by 45 publications

References 21 publications

Plasma surface chromizing of P110 oil casing tube steel for improving corrosion and wear resistance purposes

Plasma surface chromizing of P110 oil casing tube steel for improving corrosion and wear resistance purposes

Development of silicide coatings over Nb–NbCr2 alloy and their oxidation behavior at 1250 °C

Corrosion behaviors of P110 steel and chromium coating in CO2-saturated simulated oilfield brine

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