Effect of rare earth oxide on the properties of laser cladding layer and machining vibration suppressing in side milling

Zhao, Yanhua; Sun, Jie; Li, Jianfeng

doi:10.1016/j.apsusc.2014.09.195

Cited by 50 publications

(9 citation statements)

References 25 publications

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“…Surface roughness in turning with wiper insert decreased by 10% rather than by theoretical value of 50% [30,31]. This may be attributed to severe chatter [8,9] and side flow in the cladding turning process. However, surface roughness decreased to approximate 30% with the sequential burnishing process.…”

Section: Surface Topography and Roughnessmentioning

confidence: 50%

“…Furthermore, Sun et al [7] proposed analytical models in turning of Fe-Al-based coating for cutting forces prediction. Zhao et al [8,9] analyzed the chip morphology and machining vibration in milling of multi-layers formed by laser cladding. In their research, saw-tooth chips were generated on account of low thermal conductivity of cladding materials.…”

Section: Introductionmentioning

confidence: 99%

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Effect of sequential turning and burnishing on the surface integrity of Cr–Ni-based stainless steel formed by laser cladding process

Zhang

Wang

2015

Surface and Coatings Technology

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Section: Surface Topography and Roughnessmentioning

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Effect of sequential turning and burnishing on the surface integrity of Cr–Ni-based stainless steel formed by laser cladding process

Zhang

Wang

2015

Surface and Coatings Technology

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“…Their studies found that the powder mixed with rare earth elements can refine the grain and improve the grain boundary state, thus improving the performance of the cladding layer. At present, the most common rare earth powder additives are CeO 2 , Y 2 O 3 , La 2 O 3 , and so on [ 7 , 13 , 14 , 15 , 16 , 17 , 18 ]. Zhang et al [ 19 ] incorporated nano-CeO 2 particles as additives into Ni625 alloy powder and compared the differences in microstructure and electrochemical and tribological properties of Ni625 and Ni625 + 0.2% CeO 2 fused cladding layers.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

et al. 2023

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FeCoNiCrMo0.2 high entropy alloy has many excellent properties, such as high strength, high wear resistance, high corrosion resistance, and high ductility. To further improve the properties of this coating, FeCoNiCrMo high entropy alloy (HEA) coatings, and two composite coatings, FeCoNiCrMo0.2 + WC and FeCoNiCrMo0.2 + WC + CeO2, were prepared on the surface of 316L stainless steel by laser cladding technology. After adding WC ceramic powder and CeO2 rare earth control, the microstructure, hardness, wear resistance, and corrosion resistance of the three coatings were carefully studied. The results show that WC powder significantly improved the hardness of the HEA coating and reduced the friction factor. The FeCoNiCrMo0.2 + 32%WC coating showed excellent mechanical properties, but the distribution of hard phase particles in the coating microstructure was uneven, resulting in unstable distribution of hardness and wear resistance in each region of the coating. After adding 2% nano-CeO2 rare earth oxide, although the hardness and friction factor decreased slightly compared with the FeCoNiCrMo0.2 + 32%WC coating, the coating grain structure was finer, which reduced the porosity and crack sensitivity of the coating, and the phase composition of the coating did not change; there was a uniform hardness distribution, a more stable friction coefficient, and the flattest wear morphology. In addition, under the same corrosive environment, the value of polarization impedance of the FeCoNiCrMo0.2 + 32%WC + 2%CeO2 coating was greater, the corrosion rate was relatively low, and the corrosion resistance was better. Therefore, based on various indexes, the FeCoNiCrMo0.2 + 32%WC + 2%CeO2 coating has the best comprehensive performance and can extend the service life of 316L workpieces.

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“…Wear resistance of these coatings is all greatly improved when compared with that of titanium alloys due to their very high hardness of about 750-1400 HV resulting from a combination of the refinement/solution/dispersion strengthening effects. However,the intermetallic compounds involved in the above-mentioned composite coatings will bring about some new issues, such as poor machinability and high cracking susceptibility [21,22]. In addition, the further improvement in their comprehensive properties is also greatly restricted by the main components.…”

Section: Introductionmentioning

confidence: 99%

Investigation into corrosion and wear behaviors of laser-clad coatings on Ti6Al4V

Zhang

Jiang

et al. 2020

Mater. Res. Express

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TiAlCoCr x FeNihigh-entropy alloys (HEAs) coatings were fabricated on the surface of Ti6Al4V by laser cladding. Their microstructural evolution with the increase in x value (x=0, x=1.0, x=2.0) was investigated in detail. Besides that, the investigation into the effects of the Cr content on their corrosion behaviors and mechanical properties (in terms of hardness and wear resistance) was also carried out comprehensively. The results indicated that two kinds of phases (a solid solution with thehexagonal close-packed (HCP) structureand Ti 2 Ni) were synthesized in the coatings, and the HCP content was gradually increased with the increase in x accompanied with the decrease in Ti 2 Ni content. A HEA coating only composed of single HCP was successfully prepared when x reached 2.0. The electrochemical and immersion tests all confirmed that the coating with x=2.0demonstrated the most excellent corrosion resistance in a0.1 mol·L −1 HCl solution from different aspects including corrosion tendency and corrosion rate without the applied potential, the formation difficult/stability of the passive film and the dissolution rate in the passive state, and corrosion surface morphology. The averagemicrohardness values of the coatings weregraduallyincreasedfrom 656HV 0.2 to 800 HV 0.2 with increasing xfrom 0 to 2.0, which wereabout double that of the substrate (350 HV 0.2 ). Wear resistance of the coatings also exhibited the upward tendency with increasing the x values (0.562 mm 3 at x=2.0, 0.640 mm 3 at x=1.0, 0.641 mm 3 at x=0 and 1.419 mm 3 for the substrate). More Cr addition into the cladding material will contribute to the formation of a HEA coating composed of single HCPwith excellent corrosion and wear resistance.

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Effect of rare earth oxide on the properties of laser cladding layer and machining vibration suppressing in side milling

Cited by 50 publications

References 25 publications

Effect of sequential turning and burnishing on the surface integrity of Cr–Ni-based stainless steel formed by laser cladding process

Effect of sequential turning and burnishing on the surface integrity of Cr–Ni-based stainless steel formed by laser cladding process

Effects of Nano-CeO2 on Microstructure and Properties of WC/FeCoNiCrMo0.2 Composite High Entropy Alloy Coatings by Laser Cladding

Investigation into corrosion and wear behaviors of laser-clad coatings on Ti6Al4V

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