Microstructure, corrosion-resistance, and wear-resistance properties of subsonic flame sprayed amorphous Fe–Mo–Cr–Co coating with extremely high amorphous rate

Si, Chaorun; Duan, Bingbing; Zhang, Qi; Jin, Chengyan; Wu, Weichao

doi:10.1016/j.jmrt.2020.01.024

Cited by 50 publications

(23 citation statements)

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Section: Outcomes Of Simulations and Discussionmentioning

confidence: 99%

“…There is a lack of reliable information in the literature on the experimental values of the friction coefficient of pure molybdenum; however, a very recent paper [49] reports that amorphous Fe-Mo-Cr-Co coatings (with a dominating contribution of Mo) cause the reduction of COF by a factor of 3 compared with the 316L stainless steel. These results There is a lack of reliable information in the literature on the experimental values of the friction coefficient of pure molybdenum; however, a very recent paper [49] reports that amorphous Fe-Mo-Cr-Co coatings (with a dominating contribution of Mo) cause the reduction of COF by a factor of 3 compared with the 316L stainless steel. These results There is a lack of reliable information in the literature on the experimental values of the friction coefficient of pure molybdenum; however, a very recent paper [49] reports that amorphous Fe-Mo-Cr-Co coatings (with a dominating contribution of Mo) cause the reduction of COF by a factor of 3 compared with the 316L stainless steel.…”

Section: Outcomes Of Simulations and Discussionmentioning

confidence: 99%

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Elementary, Atomic-Level Friction Processes in Systems with Metallic Inclusions—Systematic Simulations for a Wide Range of Local Pressures

et al. 2021

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In this work, simulations of friction at the atomic level were performed to evaluate the influence of inclusions coming from metallic nanoadditives in the friction pair. The simple 2D model was applied considering appropriate values of Lennard–Jones potential parameters for given sets of interacting atoms. The real sliding pairs were replaced by effective equivalents consisting of several atoms. The calculations were based on the pseudo-static approximation. The simplicity of the model enabled to repeat the fast calculations in a very wide range of local pressures and for several types of atomic tribopairs. The performed simulations demonstrated a strong dependence of the coefficient of friction (COF) on the atomic environment of the atoms constituting a tribopair. It was confirmed theoretically that the Mo-Fe pair is characterized by lower atomic COF than Fe-Fe, Cu-Fe, and Ag-Fe pairs. This points to the great applicational potential of metallic molybdenum coating applications in tribological systems. Moreover, it was demonstrated that, although Cu-Cu and Ag-Ag pairs are characterized by relatively high COF, they lower the friction as inclusions in Fe surfaces.

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Section: Outcomes Of Simulations and Discussionmentioning

confidence: 99%

Section: Outcomes Of Simulations and Discussionmentioning

confidence: 99%

Elementary, Atomic-Level Friction Processes in Systems with Metallic Inclusions—Systematic Simulations for a Wide Range of Local Pressures

et al. 2021

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“…Meanwhile, due to the high microhardness of the Fe-based amorphous coating, the dominating wear mechanisms are mainly the oxidation wear caused by friction heat and the fatigue wear caused by exfoliation under a periodic load. Fe-based amorphous coatings have lower coefficients of friction (COF) and wear loss volumes than ordinary crystalline materials, such as 316 L stainless steel [ 15 ], but due to the increasingly harsh working conditions, it is expected to increase the wear resistance further. In addition to adjusting the components and optimizing the parameters to improve the hardness and density [ 16 ], adding reinforcing phase particles seems to be a new way to break through the performance bottleneck of Fe-based amorphous coatings.…”

Section: Introducementioning

confidence: 99%

Reinforcing Mechanism of WC Particles in Fe-Based Amorphous Matrix Coating on Magnesium Alloy Surface

Zhang

Wang

et al. 2021

Materials

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To protect magnesium alloy surfaces from wear and corrosion, an Fe-based amorphous coating was prepared on WE43 through the Ni60 interlayer by high-velocity oxygen-fuel (HVOF) spraying. The porosity was ~1%, and the amorphous content exceeded 90%. The wear and corrosion resistance of the composite coating with WC particles wrapped in a Ni layer as the reinforcing phase were compared with that of the completely amorphous coating. The friction coefficient (COF) of the composite coating was 0.3, which is only half of that of the WE43 substrate, and the composite coating exhibited a more stable wear behavior than the completely amorphous coating. The corrosion tendency of the composite coating is lower than that of stainless steel, with a corrosion potential of −0.331 V, and the addition of WC particles did not deteriorate the corrosion resistance considerably. The bonding mechanism of the bonding interface between the amorphous structure and the particles of the reinforcing phase was investigated by transmission electron microscopy (TEM). Reinforcing particles were confirmed to form metallurgical bonding with the coating. It was found that the Ni layer showed excellent bonding performance in the form of a mixture that is amorphous and nanocrystalline. Therefore, the Fe-based amorphous composite coating on a magnesium alloy surface shows a potential protective effect.

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“…[9][10][11][12][13] These alloying elements exhibit outstanding surface properties, like high corrosion resistance, wear resistance, microhardness and oxidation resistance. Chaorun Si et al 14 deposited FeMoCrCo particles on a stainless steel substrate using ame spraying techniques. Microhardness of the coating reached around 981.6 HV 0.1 , which was much higher than that of the stainless steel substrate material.…”

Section: Introductionmentioning

confidence: 99%

Surface alloying of FeCoCrNiMn particles on Inconel-718 using plasma-transferred arc technique: microstructure and wear characteristics

et al. 2021

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Microstructure, corrosion-resistance, and wear-resistance properties of subsonic flame sprayed amorphous Fe–Mo–Cr–Co coating with extremely high amorphous rate

Cited by 50 publications

References 50 publications

Elementary, Atomic-Level Friction Processes in Systems with Metallic Inclusions—Systematic Simulations for a Wide Range of Local Pressures

Elementary, Atomic-Level Friction Processes in Systems with Metallic Inclusions—Systematic Simulations for a Wide Range of Local Pressures

Reinforcing Mechanism of WC Particles in Fe-Based Amorphous Matrix Coating on Magnesium Alloy Surface

Surface alloying of FeCoCrNiMn particles on Inconel-718 using plasma-transferred arc technique: microstructure and wear characteristics

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