Effect of Laser Power on the Organization and Properties of NiCrFeCu-45%WC Composite Cladding Layer

Junpeng Sun; Shufeng Sun; Mingsai Zhang; Yanyan Song; Liang Li

doi:10.62051/ijmee.v5n2.03

Authors

Junpeng Sun
Shufeng Sun
Mingsai Zhang
Yanyan Song
Liang Li

DOI:

https://doi.org/10.62051/ijmee.v5n2.03

Keywords:

Laser Cladding, Drill Bit, Ni-WC Coating, Phase Composition, Microstructure, Wear Resistance

Abstract

In order to improve the wear resistance of 42CrMo steel for rock drill bits, NiCrFeCu-45%WC composite cladding layer was prepared by laser cladding technology, and the influence of laser power at 1500W-1800W on the organization evolution and mechanical properties of the cladding layer was systematically investigated. The XRD, SEM/EDS and friction wear tests show that the physical phase of the cladding layer is dominated by γ-(Ni,Fe) solid solution, accompanied by the formation of WC, W2C and Cr23C6/M7C3 carbides. When the power was increased to 1600 W, the trace WC decomposed into W2C particles, and the grains remained small in size due to heterogeneous nucleation and Zener pinning effect, and the microhardness of the cladding layer reached a peak (average 747.6 HV1.0), which was 1.4 times higher than that of the substrate, and at this time, the wear rate was at a minimum of 1.6×10-2 mm3/Nm. The study showed that the The optimal wear resistance of the cladding layer at 1600 W is achieved through fine grain strengthening, hard phase dispersion and carbide synergism.

References

[1] R. Feng, J.D. Pan, J.Z. Zhang, Y.B. Shao, B.S. Chen, Z.Y. Fang, K. Roy, J.B.P. Lim, Effects of corrosion morphology on the fatigue life of corroded Q235B and 42CrMo steels: Numerical modelling and proposed design rules, Structures. 57 (2023) 105136, https://doi.org/10.1016/j.istruc.2023.105136.

[2] G.Y. Sui, X.M. Fang, H.L. Li, X. Wu, C.Z. Zhao, F.C. Jiang, Z.Q. Wang, Cyclic deformation behaviors and microstructure evolution mechanisms of 42CrMo steels under different heat-treatment states, Engineering Failure Analysis. 161 (2024) 108303, https://doi.org/10.1016/j.engfailanal.2024.108303.

[3] C. Guo, J.M. Chen, J.S. Zhou, J.R. Zhao, L.Q. Wang, Y.J. Yu, H.D. Zhou, Effects of WC–Ni content on microstructure and wear resistance of laser cladding Ni-based alloys coating, Surf. Coat. Technol. 206 (8–9) (2012) 2064–2071, https://doi.org/10.1007/s11665-011-0109-8.

[4] J.S. Xu, X.C. Zhang, F.Z. Xuan, Z.D. Wang, S.T. Tu, Microstructure and sliding wear resistance of laser cladded WC/Ni composite coatings with different contents of WC particle, J. Mater. Eng. Perform. 21 (9) (2012) 1904–1911, https://doi.org/10.1016/j.surfcoat.2011.06.005.

[5] Y.H. Zhao, J. Sun, J.F. Li, Study on crack sensitivity and tribological characterisation of functionally gradient material multi-layer by laser cladding with powder mixture of Ni-based alloy and tungsten carbide, Int. J. Surf. Sci. Eng. 9 (4) (2015) 370–383, https://doi.org/10.1504/ijsurfse.2015.070814.

[6] F. Wirth, K. Wegener, A physical modeling and predictive simulation of the laser cladding process, Addit. Manuf. 22 (2018) 307–319, https://doi.org/10.1016/j.optlastec.2020.106784.

[7] W.L. Li, R.F. Di, R.W. Yuan, H.Y. Song, J.B. Lei, Microstructure, wear resistance and electrochemical properties of spherical/non-spherical WC reinforced Inconel 625 superalloy by laser melting deposition, J. Manuf. Process. 74 (2022) 413–422, https://doi.org/10.1016/j.jmapro.2021.12.045.

[8] Q.S. M, Y.J. L, J. W, Effects of ti addition on microstructure homogenization and wear resistance of wide-band laser clad Ni60/WC composite coatings, Int. J. Refract. Met. Hard Mater. 64 (2017) 225–233, https://doi.org/10. 1016/ j.ijrmhm.2016.11.002.

[9] Z.P. Tong, X.D. Ren, W.F. Zhou, S. Adu-Gyamfi, L. Chen, Y.X. Ye, Y.P. Ren, F.Z. Dai, J.D. Yang, L. Li, Effect of laser shock peening on wear behaviors of TC11 alloy at elevated temperature, Optics & Laser Technology. 109 (2019) 139-148, https://doi.org/10.1016/j.optlastec.2018.07.070.

[10] J.B. Liu, Y.L. Huo, J. Xiong, Z.X. Guo, T.E. Yang, J.L. Ye, J.F. Zhao, Y. Liu, Growth and properties of multi-layer nano CrAlN/TiAlN composite coating on the cermets with CrFeCoNiMo, CrFeCoNiMn, CrFeCoNiAl high entropy alloy phase, Appl. Surf. Sci. 572 (2022) 151309, https://doi.org/10.1016/j.apsusc.2021.151309.