Microstructure and Wear Resistance of Carbon Fibers Reinforced 316L Stainless Steel Prepared Using Laser Cladding

Songya, 何松亚 He; Xiaodong, 刘晓东 Liu; Shuzhen, 赵淑珍 Zhao; Jianbo, 金剑波 Jin; Shengfeng, 周圣丰 Zhou

doi:10.3788/cjl202047.0502010

Cited by 3 publications

(1 citation statement)

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“…However, the component often suffers wearout failure caused by machining damage and complex service environment, resulting in higher economic cost [4,5]. Hence, several methods were introduced to repair the complex components, such as laser shock peening, ultrasonic shot peening, and laser additive manufacturing, which eventually would increase the service life of the component [6][7][8][9][10]. During LAM, non-equilibrium solidification of the molten pool under high-energy laser irradiation would lead to the constitutional undercooling.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pulse Frequency on Microstructure, Friction and Wear Properties of Inconel 718 Coatings Prepared via Laser Cladding

Wang

et al. 2023

Crystals

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The Inconel 718 alloy clad coating was successfully prepared via pulsed laser deposition. The effect of pulse frequency on the evolution of microstructure, hardness and tribological properties of the as-deposited samples were analyzed via scanning electron microscopy (SEM), microhardness tester and ball-on-plate tribometer. The results showed that with the decrease in pulse frequency, the cooling rate of molten pool increases gradually, which effectively refines the γ-(Ni, Cr, and Fe) dendrites and restrains Nb segregation. Hence, the morphology of the brittle Laves phase changed from long chained to granular and its volume fraction decreased from 6.59% to 2.41%. The hardness of the coating increased from 261 HV0.1 to 297 HV0.1 and the tribological property also improved simultaneously. The friction coefficient decreased from 0.2387 to 0.2066, and the wear rate decreased from 27.30 × 10−4 mg·N−1·m−1 to 19.15 × 10−4 mg·N−1·m−1. It can also be observed that the wear area of the counterpart, Si3N4 ball, increased from 2.016 mm2 to 2.662 mm2. The increase in the hardness and tribological property were attributed to the grain refining strengthening.

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Section: Introductionmentioning

confidence: 99%

Effect of Pulse Frequency on Microstructure, Friction and Wear Properties of Inconel 718 Coatings Prepared via Laser Cladding

Wang

et al. 2023

Crystals

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Effect of WC-17Co content on microstructure and properties of IN718 composites prepared by laser cladding

Wang

Zhu

Song

et al. 2022

Optics & Laser Technology

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Thermal Stress Cycle Simulation in Laser Cladding Process of Ni-Based Coating on H13 Steel

Yao

Fang

2021

Coatings

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In order to improve the work efficiency and save resources in the process of laser cladding on the H13 steel surface, based on COMSOL, by combining computer simulation and experiment, a plane continuous heat source model was used to simulate and analyze the temperature and stress field. The optimal power and scanning speed were obtained. It is found in the simulation process that the thermal sampling points stress increases with the increase of laser power and scanning speed. Because of the existence of solid–liquid phase variation in the laser cladding process, there are two peaks in the maximum thermal stress cycle curve of the sample points located in the molten pool, and the starting and ending time of each sample point’s peak value is basically the same. When the sample point is outside the molten pool, because the metal at the corresponding location is not melted, so there is no obvious peak value in the thermal stress cycle curve. With the increase of cladding layer depth corresponding to each sample point, the variation range of the two alternating thermal stress peaks increases first and then decreases, while the duration increases. According to the peak value of alternating thermal stress at the sampling point, the molten pool depth can be predicted. The residual stress analysis of the cladding layer is carried out according to the analysis results of temperature field and stress field. Through the actual cladding experiment, it is found that the depth of molten pool in the simulation results is basically consistent with the experimental results. All simulation results are verified through actual cladding experiments.

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Microstructure and Wear Resistance of Carbon Fibers Reinforced 316L Stainless Steel Prepared Using Laser Cladding

Cited by 3 publications

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Effect of Pulse Frequency on Microstructure, Friction and Wear Properties of Inconel 718 Coatings Prepared via Laser Cladding

Effect of Pulse Frequency on Microstructure, Friction and Wear Properties of Inconel 718 Coatings Prepared via Laser Cladding

Effect of WC-17Co content on microstructure and properties of IN718 composites prepared by laser cladding

Thermal Stress Cycle Simulation in Laser Cladding Process of Ni-Based Coating on H13 Steel

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