A Comparative Study on the Effects of Different Thermochemical Coating Techniques on Corrosion Resistance of STKM-13A Steel

Günen, Ali; Kanca, Yusuf; Karahan, İsmail Hakkı; Karakaş, Mustafa Serdar; Gök, Mustafa Sabri; Kanca, Erdoğan; Çürük, Ahmet

doi:10.1007/s11661-018-4862-2

Cited by 25 publications

(14 citation statements)

References 30 publications

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“…This same advent is also true when samples are subjected to gradually increasing boronizing temperatures. This outcome is in agreement with that reported in the literature [41].…”

Section: Resultssupporting

confidence: 94%

“…Before performing the potentiodynamic polarization tests on the boronized and unboronized samples, the time‐dependent E Open‐Circuit Potential was first measured. In fact, besides the need to circumscribe the potential equilibrium state, the knowledge of the evolution of the E Open‐Circuit Potential values is another way of estimating corrosion resistance [41]. The experimental results (which are not presented here in their entirety) show that the twelve boronized samples exhibit more positive values compared to the non‐boronized sample.…”

Section: Resultsmentioning

confidence: 93%

“…The lowest value among the four boronized samples is that of sample T1000 t2 which can be attributed to its highest surface roughness (0.28). This is why it is advisable to keep the surface roughness to a minimum because very small concomitant crevices on the layer surface can act as corrosion initiation sites [12, 41]. Also, note that the open circuit potential curve of the T900 t4 sample displays some oscillations, indicating an active‐passive transition.…”

Section: Resultsmentioning

confidence: 99%

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Surface characterization of a modified cold work tool steel treated by powder‐pack boronizing

Belaid

Fares

Assalla

et al. 2022

Materialwissenschaft Werkst

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The present work examines the effects of pack‐boronizing treatment on the surface characteristics of modified industrial cold‐work tool steel intended for polymer crushing. Particular attention is paid to optimizing the process parameters to improve the tool surface properties and thus achieve a satisfactory tool life. To this end, a series of samples were subjected to boronizing treatment within the temperature range from 800 °C to 1000 °C for soaking periods of 2 h, 4 h, 6 h and 8 h. The structural and mechanical properties of the modified metal surface were analyzed using optical and scanning electron microscopy, x‐ray diffraction, microhardness testing and pin‐on‐disk tribotesting. The adhesion quality of the boride layer‐substrate was carried out using the adhesion test Daimler Benz Rockwell‐C. The corrosion properties were determined by the electrochemical polarization method. Experimental results showed that the optimum temperature‐temporal conditions of 900 °C/4 h that are the intermediate processing parameters led to a better compromise between the intended properties, in terms of resistance to wear and corrosion, as well as adhesion quality.

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“…This same advent is also true when samples are subjected to gradually increasing boronizing temperatures. This outcome is in agreement with that reported in the literature [41].…”

Section: Resultssupporting

confidence: 94%

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Surface characterization of a modified cold work tool steel treated by powder‐pack boronizing

Belaid

Fares

Assalla

et al. 2022

Materialwissenschaft Werkst

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“…Cracks, discontinuities, surface roughness, and porosity are essential to mechanical properties [62] and corrosion resistance. They often act as starting points for corrosion, wear, and fatigue failures and can reduce the material's service life [63,64]. Al and Fe distributed nearly 60% and 40% ratios in the coating layer, respectively.…”

Section: Characterizationmentioning

confidence: 99%

Enhancement of Marine Corrosion and Tribocorrosion Resistance of Offshore Mooring Chain Steel by Aluminizing Process

Alkan

2022

Brodogradnja

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The safety of mooring systems and accessories is one of the most critical issues in the structural integrity of floating oil/gas and renewable offshore structures. Mooring chains and accessories operate under dynamic conditions in harsh marine environments. They are subject to severe wear and corrosion between their links due to relative movement from waves, wind, and ocean currents that disrupt structural integrity. To cope with this problem, the pack-aluminizing process was applied on the R4 grade offshore mooring chain steel for 2 h at 850 °C to improve corrosion and wear-corrosion (tribocorrosion) resistance in 3.5% NaCl. The tribocorrosion behaviour of untreated and aluminized samples was investigated by a tribo-electrochemical setup that simultaneously allows for collecting the wear and corrosion data. Potentiodynamic and potentiostatic corrosion and tribocorrosion tests were carried out to understand corrosion kinetics. Optical, SEM, XRD and EDS analyses were performed to characterize the aluminide layer and surface morphologies before and after tribocorrosion investigations. In polarization scans under corrosion and tribocorrosion conditions, the current showed a significant activation stretch of several orders of magnitude, with minor potential changes in the anodic region. Due to the galvanic effects of sliding under natural electrochemical conditions, the untreated R4 alloy exhibited cathodic properties in the wear track, while the aluminium coating was out of the wear track due to its oxide-forming ability. At the cathodic potential, two hard Al2O3 materials under pure mechanical effects and third bodies emerging from cracks on the coating surface increase the friction coefficient (COF), while the oxide product film, which has a lubricating ability and pits which reduces the contact area, caused a decrease in COF at the high anodic potential. The study revealed that while the aluminide layer improved the corrosion and tribological character of R4 alloy, material loss from wear track increased due to micro fractures and cracks in the coating layer during sliding tribocorrosion conditions.

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“…The spray pyrolys%s coat%ng method cons%sts of the atom%zat%on of a l%qu%d solut%on by blow%ng a%r towards the heated surface [5]. Thermochem%cal coat%ng %s a type of coat%ng that forms n%tr%de, carb%de or bor%de layers on the mater%al surface to %mprove the surface [6]. In the coat%ng process w%th thermal spray%ng, the raw mater%al part%cles to be used %n the coat%ng are pushed to the surface to be coated at h%gh speed, wh%le they are heated by the gas %n the system and the surface %s coated [7].…”

Section: Introductonmentioning

confidence: 99%

A novel method to prepare of silane based superhydrophobic thin film

Evcin¹,

Dalkılınç²

2021

JCHAR

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In th%s study, an organ%c-%norgan%c hybr%d mater%al was f%rst prepared by the sol-gel method. 3-am%nopropyltr%ethoxys%lane (3-APTES) and tr%decafluorooctyltr%ethoxys%lane (Evon%k F 8261) were used as precursors. The s%lane coupl%ng agents were d%ssolved %n a m%xture of water, decane and hydrochlor%c ac%d for 2 hours. Soda-l%me glass substrates were coated w%th the s%lane-based coat%ng solut%on w%th the a%d of a f%lm appl%cator. The coated f%lms were dr%ed %n an oven at 80°C to allow alcohol, organ%c solvent and excess water to evaporate from the f%lms. After evaporat%on of the solvents, the samples were character%zed by contact angle, FT-IR, SEM, gon%ometer, l%ght transm%ttance, haze and gloss meter. Superhydrophob%c surface was successfully obta%ned from 3 APTES/tr%decafluorooctyltr%ethoxys%lane hybr%d compounds.

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A Comparative Study on the Effects of Different Thermochemical Coating Techniques on Corrosion Resistance of STKM-13A Steel

Cited by 25 publications

References 30 publications

Surface characterization of a modified cold work tool steel treated by powder‐pack boronizing

Surface characterization of a modified cold work tool steel treated by powder‐pack boronizing

Enhancement of Marine Corrosion and Tribocorrosion Resistance of Offshore Mooring Chain Steel by Aluminizing Process

A novel method to prepare of silane based superhydrophobic thin film

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