Effect of Cr2O3 on the microstructure and wear resistance of coatings prepared from Cr2O3-SiC-Al composite powders

Wang, Yonggang; Yang, Yong; Liang, Hao-en; Shao, Yu-xuan

doi:10.1016/j.matchemphys.2023.127860

Cited by 4 publications

(5 citation statements)

References 37 publications

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“…On the contrary, the wear rate decreases in a steady state. Experimental results differ from those reported by Wang [74], possibly due to variations in experimental conditions such as grinding and load.…”

Section: Sliding Speedcontrasting

confidence: 85%

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A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

Wang

Zhang

2023

Lubricants

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Aluminum matrix composites are key materials used in the preparation of lightweight structural parts. It has the advantages of low density, high specific strength, and high specific stiffness. Additionally, its friction and wear properties are important factors that determine the material’s suitability for use in a batch. Therefore, this paper systematically analyzes the current research on the friction and wear behavior of particle-reinforced aluminum matrix composites. It also discusses the effects of various internal factors, such as the microstructure characteristics of the matrix materials and the state of the reinforced particles, as well as external factors like wear pattern, applied load, sliding speed, thermal treatment, and temperature on the friction and wear properties of these composites. The applications of particle-reinforced aluminum matrix composites in the fields of transportation, aerospace, and electronics are summarized. In addition, this paper discusses the current research status and future development trends regarding the wear behavior of particle-reinforced aluminum matrix composites. Finally, this study aims to provide technical references for researching the friction and wear properties of particle-reinforced aluminum matrix composites. It is intended to benefit scientific researchers and engineering technicians and provide insights for the development of new composite materials in the future.

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Section: Sliding Speedcontrasting

confidence: 85%

“…Wang et al [74] investigated the dry sliding friction and wear behavior of composites reinforced with 20 vol.% SiC particles (SiC p ) and made a close comparison with unreinforced Al7091. They found that at speeds less than 1.2 m/s, the wear mechanism is characterized by fatigue wear.…”

Section: Sliding Speedmentioning

confidence: 99%

A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

Wang

Zhang

2023

Lubricants

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“…As expected, Cr 2 O 3 coating had a high hardness of 1260 ± 77 HV 3 which agreed with values reported by Lin and Sproul [8] (1224 ± 153 HV 3 ) and Zamani and Valefi [15] (1170 HV 3 ). The higher hardness of the coating can be attributed to its splat-like structure and a good interlayer bonding of single-phase composition (Figure 3(a)) [13]. The high standard deviation of Cr 2 O 3 coating hardness was due to pores and unmelted particles [11], giving different local hardness values.…”

Section: Hardness Measurements Of the Coatings And Thementioning

confidence: 99%

“…Chromium oxide serves as a coating in applications to provide corrosion protection and enhance wear resistance [12][13][14]. However, challenges arise from inadequate adhesion of the coating to metal substrates due to differing coefficients of thermal expansion, alongside its higher cost compared to mild steel [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of a Cr2O3 Coating on Mild Steel in Synthetic Mine Water

Hango,

Cornish,

van der Merwe

et al. 2024

International Journal of Corrosion

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The Cr2O3 coating on the surface of ASTM A516 Grade 70 mild steel substrates was developed using the thermal plasma spraying process for protection against corrosion and wear. The microstructural behaviours for both coating and substrate were analysed using SEM and XRD techniques. The corrosion behaviours of the coatings and substrate in synthetic mine water with varying pH values (6, 3, and 1) were evaluated according to ASTM standards for potentiodynamic polarisation measurements. Tafel plots were drawn to determine the corrosion rates. Vickers hardness of the coatings and substrate were measured. The Cr2O3 coating exhibited cracks due to the solidification and cooling process, as well as some pores between the top and bonding layers caused by unmelted or partially melted particles. The corrosion tests revealed that a decrease in pH levels led to increased corrosion rates in both samples. The Cr2O3 coating demonstrated superior corrosion resistance, ranging from 0.036±0.003 mm/year to 0.110±0.004 mm/year, compared to the mild steel substrate, which ranged from 0.262±0.021 mm/year to 0.336±0.026 mm/year, across all pH values. Moreover, it exhibited significantly greater hardness (1260±77 HV3) than the mild steel substrate (180±14 HV3). The lower corrosion rates and higher hardness of Cr2O3 coating than the mild steel substrate make it a suitable coating in applications where corrosion resistance and high hardness properties are essential.

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“…The coatings on the 316 L SS coupons were found as good based on the physical inspection, when compared to the other 2 coupons. Further the coatings were characterized and testing does will be proposed for the future scope of work [17][18][19][20][21].…”

Section: Plasma Spray Coated Specimensmentioning

confidence: 99%

Synthesis, Characterization of Chromium Oxide Powders and Coatings

Jaiswal,

Ekka,

Choudhary

et al. 2023

SSP

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The chromium oxide powders are transformed into plasma sprayable particles by using synthetic polymers for agglomeration. In order to carry out the agglomeration process, spray drying technique was employed. This research work highlights the significance of the process variables that control the synthesis of plasma spray powder and consequently, the properties that were suited for plasma spray coating. Energy Dispersive Spectroscopy (EDS) was used to characterize the elemental composition, while scanning electron microscopy (SEM) was used to analyse the morphology and powder grain sizes and X-ray diffraction (XRD) was used to identify the phase structure. And for the development of coatings on the substrates, Atmospheric plasma spray (APS) technique was used. The plasma sprayable powders were created with the intention of investigating for use as corrosion-resistant coatings.

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Effect of Cr2O3 on the microstructure and wear resistance of coatings prepared from Cr2O3-SiC-Al composite powders

Cited by 4 publications

References 37 publications

A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

Corrosion Behaviour of a Cr2O3 Coating on Mild Steel in Synthetic Mine Water

Synthesis, Characterization of Chromium Oxide Powders and Coatings

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