Effect of surface nanocrystallization layer on formation process of low temperature ion sulphurizing layer

Ba, Dema; Sun, Xiaofeng; Li, Xin; Qiu, Ji; Shi, Yupeng; Wang, Zheng

doi:10.1080/10584587.2017.1352379

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…A high-frequency pulsed plasma diffusion system was used to perform LTIS on the samples. The principles of this process are described elsewhere [17,19]. The temperature of the LTIS process was maintained at 220°C for 90 min.…”

Section: Methodsmentioning

confidence: 99%

“…Tong et al [16] obtained similar results when they investigated the nitriding on the nanocrystalline surface of 38CrMoAl alloy steels. In our early work, FeS-based solid lubricating layer on a nanocrystallized surface was prepared by the LTIS technique [17]; the result shows that the nanocrystalline layer promoted the formation of the FeS phase and increased the thickness of the sulphurized layer.…”

Section: Introductionmentioning

confidence: 99%

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Friction and wear properties of a sulphurized layer formed by low-temperature ion sulphurization on a surface nanocrystallized layer

Ba¹,

Li²,

Qiu³

et al. 2020

Surface Engineering

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The solid lubrication film containing sulphide was prepared on the surface nanocrystallized surfacing layer by low-temperature ion sulphurizing technology. The microstructure of the sulphurized layer was analysed. The tribological behaviour of the sulphurized layer based on the nanocrystalline layer was investigated in a dry friction condition. The sulphurized layer on the nanocrystalline layer has high sulphide content, with the FeS phase accounting for a large proportion of this layer. The sulphurized layer based on the nanocrystalline layer is thicker and denser and has a significantly lower friction coefficient than the untreated sample, with 25% reduction in wear volume. Analysis demonstrated that the high active nanocrystalline layer is also beneficial for the formation of a sulphurized layer. In addition, the high-hardness nanocrystalline layer provides an excellent support for the lubricating layer and is beneficial for enhancing the antifriction property.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Friction and wear properties of a sulphurized layer formed by low-temperature ion sulphurization on a surface nanocrystallized layer

Ba¹,

Li²,

Qiu³

et al. 2020

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…It has the characteristics of low hardness, low resistance to deformation, plastic solid flow ability, and low shear strength. Under the action of frictional force, it easily slips along the lattice plane and moves to the mating surface, reducing direct contact between the metal matrix and thereby reducing the friction coefficient and improving wear resistance [210][211][212][213]. FeS has a porous structure with small-capillary effects, which can absorb lubricating oil to form a stable oil film.…”

Section: Sulfidesmentioning

confidence: 99%

Solid Lubrication System and Its Plasma Surface Engineering: A Review

Li,

Zhou,

2023

Lubricants

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In aerospace, aviation, nuclear power, and other high-tech fields, some essential moving parts must operate under high vacuum, high load, intense radiation, and other conditions. Under such extreme conditions, only solid lubricating materials can meet the lubrication requirements. Traditional material modification methods have problems such as high energy consumption, severe pollution, and narrow scope of application. Plasma modification technology can overcome these shortcomings. This paper focuses on several commonly used plasma preparation techniques for solid lubricating coatings, including plasma chemical heat treatment, physical vapor deposition, plasma immersion ion implantation and deposition, plasma spraying, and plasma electrolytic oxidation. Subsequently, the material systems of metal-based solid lubrication coatings are reviewed: soft metals, oxides, sulfides, nitrides, and carbon-based materials. Finally, found that the development of new solid lubricants, the improvement of existing preparation technology, and the development of new processes are the key development directions in the future.

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Effect of surface nanocrystallization layer on formation process of low temperature ion sulphurizing layer

Cited by 2 publications

References 12 publications

Friction and wear properties of a sulphurized layer formed by low-temperature ion sulphurization on a surface nanocrystallized layer

Friction and wear properties of a sulphurized layer formed by low-temperature ion sulphurization on a surface nanocrystallized layer

Solid Lubrication System and Its Plasma Surface Engineering: A Review

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