Improved wear properties of GCr15 steel balls by fabricating a surface Ti diffusion layer using mechanical alloying and NH3·H2O treatment

Xie, X. C.; Guo, Zhongning; Xiao, Jinrui; Liang, Zhongwei; Shan, W.; Feng, Wenkang; Zhao, Zhuan; Liu, Xiaochu

doi:10.1016/j.jmrt.2022.12.042

Cited by 12 publications

(5 citation statements)

References 41 publications

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“…Tian et al [ 9 ] used vapor phase chromizing technology to obtain a chromizing layer on the surface of GCr15 steel, and the hardness of the chromizing layer reached 1600 HV. Xie et al [ 10 ] coated titanium on the surface of a Φ 8 mm GCr15 steel ball and performed ball milling treatment to obtain a titanium-hardened layer with a hardness of 895 HV on the surface of the steel ball. Li et al [ 11 ] carried out laser texturing on the surface of GCr15 steel and studied its friction performance under the lubrication of a suspension of graphene and liquid crystal 4-n-pentyl-4-cyano biphenyl (5CB).…”

Section: Introductionmentioning

confidence: 99%

Preparation of a Ni-P-nanoPTFE Composite Coating on the Surface of GCr15 Steel for Spinning Rings via a Defoamer and Transition Layer and Its Wear and Corrosion Resistance

Shunqi

Zhou

et al. 2023

Materials

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In this study, a method of preparing a Ni-P-nanoPTFE composite coating on the surface of GCr15 steel for spinning rings is proposed. The method incorporates a defoamer into the plating solution to inhibit the agglomeration of nano-PTFE particles and pre-deposits a Ni-P transition layer to reduce the possibility of leakage coating. Meanwhile, the effect of varying the PTFE emulsion content in the bath on the micromorphology, hardness, deposition rate, crystal structure, and PTFE content of the composite coatings was investigated. The wear and corrosion resistances of the GCr15 substrate, Ni-P coating, and Ni-P-nanoPTFE composite coating are compared. The results show that the composite coating prepared at a PTFE emulsion concentration of 8 mL/L has the highest concentration of PTFE particles (up to 2.16 wt%). Additionally, its wear resistance and corrosion resistance are improved compared with Ni-P coating. The friction and wear study shows that the nano-PTFE particles with low dynamic friction coefficient are mixed in the grinding chip, which gives the composite coating self-lubricating characteristics, and the friction coefficient decreases to 0.3 compared with 0.4 of Ni-P coating. The corrosion study shows that the corrosion potential of the composite coating has increased by 7.6% compared with that of the Ni-P coating, which shifts from −456 mV to a more positive value of −421 mV. The corrosion current reduces from 6.71 μA to 1.54 μA, which is a 77% reduction. Meanwhile, the impedance increased from 5504 Ω·cm2 to 36,440 Ω·cm2, which is an increase of 562%.

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Section: Introductionmentioning

confidence: 99%

Preparation of a Ni-P-nanoPTFE Composite Coating on the Surface of GCr15 Steel for Spinning Rings via a Defoamer and Transition Layer and Its Wear and Corrosion Resistance

Shunqi

Zhou

et al. 2023

Materials

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Section: Introductionmentioning

confidence: 93%

“…The above studies suggest that chemical plating of Ni-Cr-P, as a promising surface treatment technology, can enhance the surface hardness, corrosion resistance, and wear resistance of alloys effectively [14] . However, current research has focused mainly on preparing Ni-Cr-P coatings on common materials such as carbon steel, cast iron, copper, and stainless steel.…”

Section: Introductionmentioning

confidence: 93%

Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel

Mei,

Yang,

Zheng

et al. 2024

Preprint

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65Mn alloy steel, as a promising raw material for the manufacture of knitting needles, requires in-depth study in order to enhance its surface hardness and wear-corrosion resistance. This study focused on the chemical deposition and properties of Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel. The effects of plating solution composition, process parameters, and their effects on coating deposition rate, surface hardness, and other indicators were also analyzed. The results showed that, under conditions of 12 g/L CrCl3·6H2O, 5 g/L C6H8O7·H2O, 20 g/L C3H6O3, pH 5.5, and a temperature of 70°C, the coating obtained exhibited optimal performance, with a deposition rate of 3.292 µm/h, a microhardness reaching 627.28 HV0.2, and P and Cr elemental contents of 9.16 and 0.127 wt%, respectively. The coating structure was dense, with good adhesion and minimal porosity. To further enhance the wear resistance, a Ni-Cr-P coating was prepared using the aforementioned process parameters, followed by heat treatment. The effects of heat treatment temperature on the microstructure, microhardness, X-ray diffraction (XRD) spectra, and other characteristics were analyzed. The results indicated an optimal heat treatment temperature for the coating of 200°C. Following heat treatment, the microhardness of the coating remained relatively unchanged, and there was a tendency for the coating structure to become more crystalline, leading to improved wear and corrosion resistance.

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“…However, the current application of the MA method for strengthening steel balls remains relatively limited, with only a few references available. For instance, Xie et al [36,37] conducted a study in which they improved the wear properties of GCr15 steel balls by creating a Ti and Ti + Nb atomic diffusion layer on their surfaces using MA and NH 3 •H 2 O treatment. Nevertheless, the thickness of these diffusion layers was found to be less than 5.2 µm, which does not meet the practical requirements for certain applications.…”

Section: Introductionmentioning

confidence: 99%

Improved wear resistance of 440C steel balls through mechanical alloying with Al 2 O 3 powders

Liu

Zhang

et al. 2023

Preprint

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This study investigates the effect of mechanical ball milling with Al2O3 powders on the wear resistance of 440C steel balls. A specially-designed grinding jar was employed for the mechanical ball milling process, allowing for the comparison of samples treated with Al2O3 powders and without Al2O3 powders, as well as the heat-treatment samples. The roughness, microhardness, residue stress, and wear resistance of treated samples were investigated and compared. The results reveal that the addition of Al2O3 powders leads to significant grain refinement, increased dislocation density, and the presence of nano-structured staking faults. The treated samples exhibit a strengthened layer exceeding 200 µm, with maximum microhardness reaching 753 HV and residual stress measuring − 237 MPa. Furthermore, the treated samples demonstrate reduced coefficient of friction, wear volume, and improved wear resistance compared to the other samples. These findings highlight the efficiency of mechanical ball milling with Al2O3 powders in enhancing the wear resistance of ball mechanical components, thereby offering potential benefits for industrial applications.

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Improved wear properties of GCr15 steel balls by fabricating a surface Ti diffusion layer using mechanical alloying and NH3·H2O treatment

Cited by 12 publications

References 41 publications

Preparation of a Ni-P-nanoPTFE Composite Coating on the Surface of GCr15 Steel for Spinning Rings via a Defoamer and Transition Layer and Its Wear and Corrosion Resistance

Preparation of a Ni-P-nanoPTFE Composite Coating on the Surface of GCr15 Steel for Spinning Rings via a Defoamer and Transition Layer and Its Wear and Corrosion Resistance

Ni-Cr-P composite co-deposition on the surface of 65Mn alloy steel

Improved wear resistance of 440C steel balls through mechanical alloying with Al 2 O 3 powders

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