Effect of laser textured surface with different patterns on tribological characteristics of bearing material AISI 52100

Joshua, S. Paul; Бабу, П. Динеш

doi:10.1007/s11771-020-4442-7

Cited by 11 publications

(5 citation statements)

References 14 publications

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“…The friction and anti-wear performance has been greatly improved. On the other hand, the bionic microtexture provides a stable lubricating oil lm, hydrodynamic lubrication, and the ability to store wear debris on the sample surface [34]. The hard Fe amorphous wear debris acts as an anti-friction "roller" in the lubricating uid stored in the texture, further reducing the generation of wear furrows.…”

Section: Reinforcement Mechanismmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2023

Preprint

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The objective of this study is to enhance the friction properties of piston materials under high temperatures. To achieve this, we developed a novel piston composite material (Fe-amorphous/Al-12Si) by incorporating Fe-amorphous. Additionally, we employed bionic micro-textured laser surface treatment technology to improve its wear resistance. The influence of Fe-amorphous content on the frictional properties of the composite material was investigated, together with the synergistic mechanism of Fe-amorphous addition and biomimetic texture on Al-12Si under the lubrication conditions of B30 biodiesel diluted engine oil. The results indicate that the frictional properties of the untextured surface of the Fe-amorphous/Al-12Si composite material depend primarily on the amount of Fe-amorphous added. The 10 wt% Fe-amorphous/Al-12Si composite exhibits a dense, void-free microstructure with optimum anti-friction and anti-wear performance. It is noteworthy that the interaction between the "anchoring effect" caused by the Fe-amorphous addition and the "fluid-dynamic lubrication effect" induced by the biomimetic texture further enhances the high-temperature friction properties of Al-12Si. Therefore, this study provides a novel approach for the development of piston materials for biodiesel engines.

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Section: Reinforcement Mechanismmentioning

confidence: 99%

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Wang,

Lin,

Yin

et al. 2023

Preprint

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“…The laser beam irradiated on the top surface of workpiece at the off-focused position where the beam diameter at 1/e 2 (d b ) of 100 µm was attained as shown in Figure 1a. This beam diameter was expected to produce a dimple diameter of about 100 µm, which is recommended by previous studies [12,25,[28][29][30][31][32] as a proper size of dimple for trapping lubricant and enabling the hydraulic pressure at the contact surface to reduce the friction. The laser pulse repetition rate (f ) and irradiation time (t) for each dimple ablation were kept constant at 100 kHz and 0.1 s, respectively.…”

Section: Micro-dimple Fabricationmentioning

confidence: 99%

“…The micro-dimples arranged in a grid array increase the load-carrying capacity of the lubricant and improve the ironing limits. According to many past studies, the dimple diameter and aspect ratio of about 100 µm [12,25,[28][29][30][31][32] and 0.1 [26,30,32], respectively, are usually suggested to be fabricated on the tool surface for improving its tribological properties. However, there have been few discussions on the effect of dimple density on friction reduction.…”

Section: Introductionmentioning

confidence: 99%

Laser-Fabricated Micro-Dimples for Improving Frictional Property of SKH51 Tool Steel Surfaces

Phun,

Daodon,

Septham

et al. 2023

Lubricants

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Friction involved in metal-forming processes typically leads to the wear of tool and die surfaces, and in turn shortens the tool’s service life. A thriving need for reducing surface friction requires the tool surface to be modified. This paper presents the surface modification of SKH51 tool steel, on which the hexagonal array of micro-dimples is fabricated by a nanosecond pulse laser. Using the average laser power of 25 W can create decent dimples for trapping lubricant and enabling hydraulic pressure at the surfaces in contact. The effect of dimple density and sliding speed on the coefficient of friction was examined in this study through the pin-on-disc test, in which a stainless steel pin was applied against the tool steel disc with a constant load. The laser-textured tool steel surface with a dimple density of 35% had a friction coefficient of 0.087, which was lower than that of the untextured surface by 12.6% when using a sliding speed of 15 cm/s. In addition to friction reduction, there was no substantial wear found on the laser-textured surface compared to the untextured sample. The findings of this study can be a processing guideline and benefit the treatment of tool and die surfaces for friction and wear reduction in metal-forming and related processes.

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“…In [16], discovered that bi-triangular dimples with a 20% area density had a stronger impact on enhancing the tribological characteristics of contact pairs than other shapes and sizes. In [17], the influence of varying shapes of dimple-texture patterns on the surface morphology of frictional pairs was shown. According to the findings, the ellipsoidal texture with 300µm spacing has a minimal wear rate.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

Vignesh

Barik

2022

IJAME

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The fabrication of dimple-texture is essential for reducing friction and wear in frictional interaction pairs. The tribological characteristics of the frictional interaction pairs can be improved by controlling the dimple pattern, the depth to diameter ratio, and the area density ratio. In this study, the tribological characteristics of tungsten carbide discs with various dimple-texture patterns and hardened AISI H-13 steel pins are tested experimentally using a pin on disc wear tester to identify the wear mechanism. Laser marking technology was utilized to fabricate the dimple-textures such as circular arrays of the honeycomb pattern and spherical dimple-texture pattern with varying area density ratios. The impact of dimple-texture patterns is examined experimentally under dry testing conditions. Dimple-textured surfaces have a positive influence as compared to non-textured smooth surfaces. Particularly, the spherical dimple-textured pattern reduces frictional coefficient and wear rate by 45% and 51%, respectively, compared to non-textured smooth surfaces. The dimple-texture pattern and area density ratio control are essential features in dimple-texturing.

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Effect of laser textured surface with different patterns on tribological characteristics of bearing material AISI 52100

Cited by 11 publications

References 14 publications

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Synergistic effect of Fe-amorphous and bionic microtexture in enhancing high-temperature tribological properties of Al-12Si piston materials

Laser-Fabricated Micro-Dimples for Improving Frictional Property of SKH51 Tool Steel Surfaces

An Experimental Investigation of Dimple-Texturing on the Tribological Performance of Hardened AISI H-13 Steel

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