Tribological behaviors of LDED Inconel 718 samples polished with a hybrid laser polishing technique

Liu, Yufan; Sun, Shengyuan; Wang, Jiale; Ouyang, Wentai; Xu, Jihao; Sheng, Liyuan; Xu, Zifa; Ru, Haolei; Liu, Yongyue; Jiao, Junke

doi:10.1016/j.jmrt.2023.05.230

Cited by 13 publications

(4 citation statements)

References 55 publications

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“…They refer to the layer formed by these oxides as the glaze layer. It has been observed in numerous research that nickel-based alloys can form a glaze layer when subjected to tribological stresses at high temperature [13], [23]. Stott et al explained the formation of such a layer through the compression and compaction of oxidized debris that form at the beginning of the wear process [24].…”

Section: Impact Of the Normal Loadmentioning

confidence: 99%

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Effect of the elevated temperature on the wear behavior of Laser Metal Deposition IN718 repairs

Zurcher,

Bouvard,

Abry

et al. 2024

Tribology International

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Section: Impact Of the Normal Loadmentioning

confidence: 99%

“…At high temperatures, Liu et al recently studied the tribological behavior of IN718 deposited by LMD and subsequently laser polished. They showed that, after being polished, the IN718 had better wear properties [13]. Lu et al studied the wear properties of IN718 deposited on a Ti-6Al-4V substrate with a transition composition route [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of the elevated temperature on the wear behavior of Laser Metal Deposition IN718 repairs

Zurcher,

Bouvard,

Abry

et al. 2024

Tribology International

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“…The variation of friction coefficient with the sliding distance of the as-received and 100-8 FSSed samples at the applied loads of 5 and 20 N is illustrated in Figure 14(a, b), respectively. As seen, following the running-in period whose occurrence can be explained by increasing the real contact area, generation, actions, and ejection of entrapped wear debris between sliding surfaces (three-body abrasion), and work hardening of surfaces [46–48], a steady-state trend is attained in the friction behaviour of samples. During the steady-state period, FSS has significantly reduced both the average value and fluctuation range of the friction coefficient (Figure 14).…”

Section: Effect Of Fss On Tribological Propertiesmentioning

confidence: 99%

Enhancing the tribological properties of pure Ti by pinless friction surface stirring

Ashoori,

Jafarzadegan,

Taghiabadi

et al. 2023

Materials Science and Technology

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Friction surface stirring (FSS) was employed to enhance the tribological properties of commercially pure Ti (CP-Ti). Applying FSS under the optimised process parameters (i.e. rotation and traverse speeds of 100 rpm and 8 mm/min, respectively) was found to increase the surface hardness of as-received CP-Ti from about 200–630 HV. The sliding wear resistance was therefore increased by 76, 76, and 85% under applied loads of 5, 10, and 20 N, respectively. The average friction coefficient (AFC) of CP-Ti also reduced considerably by the FSS. For instance, the AFC was reduced from 0.67 ± 0.07 and 1.04 ± 0.14 to about 0.33 ± 0.03 and 0.45 ± 0.04 at the applied loads of 5 and 20 N, respectively. The wear and friction mechanisms were also discussed.

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“…Yan et al [16] successfully produced TC4 thin-wall parts with good build strategy through the hybrid manufacturing process. In the study by Liu et al [17,18], hybrid additive manufacturing was proposed to improve the surface quality of additive manufacturing components, and it was found that laser polishing greatly reduced the surface roughness and improved the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Fabricating Inner Channels in Laser Additive Manufacturing Process via Thin-Plate-Preplacing Method

Jiao,

Sun,

et al. 2023

Materials

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This paper presents a hybrid manufacturing process for the preparation of complex cavity structure parts with high surface quality. Firstly, laser precision packaging technology is utilized to accurately connect a thin plate to a substrate with microchannel. Secondly, Direct Metal Laser-Sintering (DMLS) technology is utilized to completely shape the part. The morphology and microstructure of laser encapsulated specimens and DMLS molded parts were investigated. The results show that the thin plate and the substrate can form a good metallurgical bond. The lowest surface roughness of the DMLS molded parts was 1.18 μm. The perpendicularity between the top of the microchannel and the side wall was optimal when the laser power was 240 W. Consequently, the hybrid manufacturing process effectively solves the problems of poor surface quality and powder sticking of closed inner cavities. The method effectively eliminates the defects of adhesive powder in the inner cavity of the DMLS microchannel, improves the finish, and solves the problem that mechanical tools cannot be processed inside the microchannel, which lays the foundation for the research of DMLS high-quality microchannel process.

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Tribological behaviors of LDED Inconel 718 samples polished with a hybrid laser polishing technique

Cited by 13 publications

References 55 publications

Effect of the elevated temperature on the wear behavior of Laser Metal Deposition IN718 repairs

Effect of the elevated temperature on the wear behavior of Laser Metal Deposition IN718 repairs

Enhancing the tribological properties of pure Ti by pinless friction surface stirring

Fabricating Inner Channels in Laser Additive Manufacturing Process via Thin-Plate-Preplacing Method

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