Tribocorrosion performance of Fe-base and Ni-base wear resistant coatings in CO2 anoxic environments

Trausmuth, Andreas; Kronberger, Markus; Raghuram, Harsha; Rojacz, H.; Badisch, E.; Ripoll, Manel Rodríguez

doi:10.1016/j.corsci.2021.110035

Cited by 6 publications

(3 citation statements)

References 40 publications

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“…Improvements in tribocorrosion behavior at low or high pH by the complete or partial substitution of Co by Ni are reported [71], although Cho et al [74] show in their description of uniform Ni-or NiCr-binders to WC granular phase, a micro-galvanic corrosion between the WC grains and the binder phase may occur. However, a recent tribocorrosion study of our workgroup in a CO 2 -rich environment was published, which included thermally sprayed WC-Cr 3 C 2 -NiCr, and elaborated this material as best performer [75].…”

Section: Tribocorrosion Of Water-lubricated Hard-phase Materialsmentioning

confidence: 99%

“…In anodic, the 1.4112 steel reference exhibited passivity until polarization exceeded +0.4 V, followed by minor activation at higher potentials without any indication of transpassivity. The pseudo-maximum around +1.0 V may be most likely associated with the formation of soluble Cr VI [75]; 1.4108 steel shifted to transpassive behavior above +0.5 to +0.9 V (lines from two experiments are shown in Figure 14b); 1.4125 steel showed pitting onsets above +0.5 V before becoming transpassive above +0.8 V. Although the potentials of passive-transpassive transition were similar for these two materials, 1.4125 steel had a clear limitation of the anodic current at around 1 mA cm −2 . MMC behaved actively in mild anodic conditions, whereas at higher potentials, the current evolution lost its dynamics, and maximum current densities met with 1.4125 steel values.…”

Section: Cathodic Polarization Cyclovoltammetric and Potentiodynamic ...mentioning

confidence: 99%

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Tribocorrosive Aspects of Tungsten Carbide, Silicon Nitride, and Martensitic Steel under Fretting-like Conditions

Kronberger

Brenner

2023

Lubricants

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Water-based lubrication faces the common challenge of component lifetime extension which is impaired by tribocorrosion due to material surface depassivation. However, such mechanisms in a pH-neutral and low-halide electrolyte require additional understanding. A ball-on-flat configuration study of hard-phase materials in a low amplitude–high frequency sliding contact against martensitic chromium steel with contact pressures around 200 MPa is presented. Under lubrication by purified water, tungsten carbide-based metal matrix composite (MMC) with NiCr binder and silicon nitride-based ceramic (SiAlON) against DIN/EN 1.4108 steel yielded coefficients of friction above unity. Wear scar enlargement led to fretting-like conditions with adhesion becoming the fundamental wear mechanism. A tribocorrosion-induced depletion of tungsten carbide and nickel was determined for MMC. SiAlON materials suffered extreme wear under the formation of abrasive SiO2, while heat-treated DIN/EN 1.4125 steel showed lower friction and wear, but also showed signs of hydrogen embrittlement. Results from accompanying single-material corrosion experiments could not satisfactorily explain the phenomena. Including galvanic interaction and the influence of contact geometry, a new tribocorrosion model for fretting conditions is proposed. It describes an expanding anodic belt located at the inner-most crevice position of an otherwise cathodically polarized material. Low conductivity of the electrolyte is seen as a key player in this process, while the galvanic situation between two materials in contact was shown to invert when water was substituted by a wet organic phase.

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Section: Tribocorrosion Of Water-lubricated Hard-phase Materialsmentioning

confidence: 99%

Section: Cathodic Polarization Cyclovoltammetric and Potentiodynamic ...mentioning

confidence: 99%

Tribocorrosive Aspects of Tungsten Carbide, Silicon Nitride, and Martensitic Steel under Fretting-like Conditions

Kronberger

Brenner

2023

Lubricants

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“…So far, especially in the simultaneous elucidation of the behavior and performance of Fe-based coating in corrosion and erosion environments, there have not been many research works on the corrosion resistance of thermal spraying Fe-based alloy coating [21][22][23]. In addition, from the perspective of composition design, the corrosion and erosion behavior of coating, that the austenitic stainless steel powder was added to the Fe-based coating using supersonic plasma spraying technology, and the corrosion resistance of the Fe-based composite coating was enhanced by changing the content of corrosion resistance elements.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Corrosion Behavior of Fe-Based Austenite-Containing Composite Coatings Using Supersonic Plasma Spraying

et al. 2023

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The Fe-based austenite-containing composite coatings with various contents (3 vol.%, 6 vol.%, 9 vol.%, 12 vol.%) of austenite powder additions were created by supersonic plasma spraying on 45 steel substrates. The microstructure, phase composition, microhardness, and porosity of the composite coatings were examed. Moreover, special attention was paid to the effect of austenite powder on the corrosion resistance of the austenite-containing composite coatings. The results found that the addition of austenite powders could significantly improve the corrosion resistance of Fe-based coatings, which is mainly due to three correlated phenomena caused by the austenite particles. First, austenite particles significantly reduce the porosity of the austenite-containing composite coatings and form a denser coating structure due to their low melting point and good chemical compatibility with the Fe-based alloy. Further, austenite particles help to refine the grains and increase the grain boundary density. Last but not least, austenite particles help to generate more diffusely distributed second phases in the coating, improving the chemical homogeneity and hardness of the coating.

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The microstructure and wear behavior of WC-reinforced diamond composite coating

Wu,

Long,

Zhang

et al. 2024

Weld World

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Tribocorrosion performance of Fe-base and Ni-base wear resistant coatings in CO2 anoxic environments

Cited by 6 publications

References 40 publications

Tribocorrosive Aspects of Tungsten Carbide, Silicon Nitride, and Martensitic Steel under Fretting-like Conditions

Tribocorrosive Aspects of Tungsten Carbide, Silicon Nitride, and Martensitic Steel under Fretting-like Conditions

Microstructure and Corrosion Behavior of Fe-Based Austenite-Containing Composite Coatings Using Supersonic Plasma Spraying

The microstructure and wear behavior of WC-reinforced diamond composite coating

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