Defect Evolution in Laser Remelting of Thermally Sprayed Cr₃C₂-NiCr Cermet Coating

Abstract:

Pores and weak bonding are the inherently drawbacks for thermally sprayed coating. Laser beam is an attractive approach to remelt thermal spray coating for obtaining fully dense coating with metallurgical bonding with substrate. However, defects of holes or cracks are highly inevitable with unmatching remelting processing parameters. In this work, a thermally sprayed Cr₃C₂-NiCr cermet coating by high velocity oxygen fuel spraying was post-processed by laser remelting with a series of varying beam energy densities from 37.5 J/mm² to 225 J/mm². The defect evolution was investigated by both experimental and numerical simulation methods. Large holes and through-thickness cracks were typical defects observed in the remelt coating by optical microscopy. The experimental results show that remelting-induced defects evolve into three stages with laser energy density. The effect of energy density on remelt structure was further verified with the temperature field by numerical simulation with ABAQUS code. The stress field interpreted the crack formation at periodical formation sites. The results on the defect evolution shed light on obtaining functional coatings for industrial applications.

• Periodical: Advanced Materials Research (Volume 1170)
• Pages: 25-38
• DOI: https://doi.org/10.4028/p-o83707
• Online since: April 2022
• Authors: En Wei Qin, Hai Feng Lu, Wen Li Li*, Hong Zhuan Qin, Chen Yang Pan, Shu Hui Wu
• Keywords: Cermet Coating, Cracking, Hybrid Process, Laser Remelting, Numerical Simulation

References

[1] D. Tejero-Martin, M. Rezvani Rad, A. McDonald, T. Hussain, Beyond Traditional Coatings: A Review on Thermal-Sprayed Functional and Smart Coatings, J Therm Spray Technol 28(4) (2019) 598-644.

DOI: 10.1007/s11666-019-00857-1

[2] ASM Handbook Thermal Spray Technology, ASM International, (2013).

[3] R.K. Shukla, V. Patel, A. Kumar, Modeling of Rapid Solidification with Undercooling Effect During Droplet Flattening on a Substrate in Coating Formation, J Therm Spray Technol 27(3) (2018) 269-287.

DOI: 10.1007/s11666-017-0666-y

[4] Y. Wang, Y. Bai, K. Wu, J. Zhou, M.G. Shen, W. Fan, H.Y. Chen, Y.X. Kang, B.Q. Li, Flattening and solidification behavior of in-flight droplets in plasma spraying and micro/macro-bonding mechanisms, J Alloys Compd 784 (2019) 834-846.

DOI: 10.1016/j.jallcom.2019.01.076

[5] M.M. Lima, C. Godoy, P.J. Modenesi, J.C. Avelar-Batista, A. Davison, A. Matthews, Coating fracture toughness determined by Vickers indentation: an important parameter in cavitation erosion resistance of WC–Co thermally sprayed coatings, Surf Coat Technol 177-178 (2004) 489-496.

DOI: 10.1016/s0257-8972(03)00917-4

[6] R. Gonzalez, M. Cadenas, R. Fernandez, J.L. Cortizo, E. Rodriguez, Wear behaviour of flame sprayed NiCrBSi coating remelted by flame or by laser, Wear 262(3) (2007) 301-307.

DOI: 10.1016/j.wear.2006.05.009

[7] L. Chen, H. Wang, C. Zhao, S. Lu, Z. Wang, J. Sha, S. Chen, L. Zhang, Automatic remelting and enhanced mechanical performance of a plasma sprayed NiCrBSi coating, Surf Coat Technol 369 (2019) 31-43.

DOI: 10.1016/j.surfcoat.2019.04.052

[8] D. Jiyu, L. Fangyi, L. Yanle, W. Liming, L. Haiyang, R. Xueju, Z. Xingyi, Influences of plasma arc remelting on microstructure and service performance of Cr3C2-NiCr/NiCrAl composite coating, Surf Coat Technol 369 (2019) 16-30.

DOI: 10.1016/j.surfcoat.2019.04.037

[9] X.C. Li, H.L. Tian, S.C. Wei, H. Tong, C. Zhao, B.S. Xu, Characteristic of Remelting Ni60 Alloy Coating by High Temperature Resistance Electric Furnace, Adv Mater Res 531 (2012) 194-198.

DOI: 10.4028/www.scientific.net/amr.531.194

[10] N. Kazamer, R. Muntean, P.C. Valean, D.T. Pascal, G. Marginean, V.A. Serban, Comparison of Ni-Based Self-Fluxing Remelted Coatings for Wear and Corrosion Applications, Materials 14(12) (2021).

DOI: 10.3390/ma14123293

[11] Y.-Z. Wu, W.-B. Liao, F. Wang, M.-L. Wang, C.-Y. Yu, Z. Wang, Z.-X. Guo, Z.-Y. Liu, Y.-B. Cao, J.-J. Huang, Effect of electron beam remelting treatments on the performances of plasma sprayed zirconia coatings, J Alloys Compd 756 (2018) 33-39.

DOI: 10.1016/j.jallcom.2018.05.004

[12] J. Cai, C.Z. Gao, P. Lv, C.L. Zhang, Q.F. Guan, J.Z. Lu, X.J. Xu, Hot corrosion behaviour of thermally sprayed CoCrAlY coating irradiated by high-current pulsed electron beam, J Alloys Compd 784 (2019) 1221-1233.

DOI: 10.1016/j.jallcom.2019.01.071

[13] W.B. Liao, Z.Y. Liu, M.J. He, C.S. Feng, F. Wang, J.J. Huang, Effect of Electron Beam Remelting Treatments on the Microstructure and Properties of Atmospheric Plasma Sprayed Tungsten Coatings, J Therm Spray Technol 30(8) (2021) 2128-2137.

DOI: 10.1007/s11666-021-01281-0

[14] E. Chun, C. Park, H. Nishikawa, M. Kim, Microstructural characterization of Ni-based self-fluxing alloy after selective surface-engineering using diode laser, Appl Surface Sci 442 (2018) 726-735.

DOI: 10.1016/j.apsusc.2018.02.226

[15] C. Ciubotariu, D. Frunzăverde, G. Mărginean, V. Șerban, A. Birdeanu, Optimization of the laser remelting process for HVOF-sprayed Stellite 6 wear resistant coatings, Opt Laser Technol 77 (2016) 98-103.

DOI: 10.1016/j.optlastec.2015.09.005

[16] L. Janka, J. Norpoth, S. Eicher, M. Rodríguez Ripoll, P. Vuoristo, Improving the toughness of thermally sprayed Cr3C2-NiCr hardmetal coatings by laser post-treatment, Mater Des 98 (2016) 135-142.

DOI: 10.1016/j.matdes.2016.03.007

[17] J. Suutala, J. Tuominen, P. Vuoristo, Laser-assisted spraying and laser treatment of thermally sprayed coatings, Surf Coat Technol 201(5) (2006) 1981-1987.

DOI: 10.1016/j.surfcoat.2006.04.042

[18] J.W. Liu, R. Bolot, S. Costil, M.P. Planche, Transient thermal and mechanical analysis of NiCrBSi coatings manufactured by hybrid plasma spray process with in-situ laser remelting, Surf Coat Technol 292 (2016) 132-143.

DOI: 10.1016/j.surfcoat.2016.03.031

[19] R.D. Castro, E.I.M. Curi, L.F.F. Inacio, A.D. Rocha, M. Pereira, R.G.N. Silva, A.D.P. Pereira, Laser remelting of WC-CoCr surface coated by HVOF: Effect on the tribological properties and energy efficiency, Surf Coat Technol 427 (2021).

DOI: 10.1016/j.surfcoat.2021.127841

[20] J. Yu, Y. Wang, F. Zhou, L. Wang, Z.Y. Pan, Laser remelting of plasma-sprayed nanostructured Al2O3–20 wt.% ZrO2 coatings onto 316L stainless steel, Appl Surface Sci 431 (2018) 112-121.

DOI: 10.1016/j.apsusc.2017.06.204

[21] B. Das, A.K. Nath, P.P. Bandyopadhyay, Scratch resistance and damage mechanism of laser remelted thermally sprayed ceramic coating, Surf Coat Technol 364 (2019) 157-169.

DOI: 10.1016/j.surfcoat.2019.02.078

[22] P. Varghese, E. Vetrivendan, B.R.V. Krupa, P.K. Shukla, R.K. Gupta, E.H. Rao, G. Puppala, S. Ningshen, Molten sodium corrosion of laser surface remelted yttria-stabilized zirconia thermal barrier coatings, Corros Sci 191 (2021).

DOI: 10.1016/j.corsci.2021.109740

[23] C. Wang, J. Yu, Y. Zhang, Y. Yu, Phase evolution and solidification cracking sensibility in laser remelting treatment of the plasma-sprayed CrMnFeCoNi high entropy alloy coating, Mater Des 182 (2019) 108040.

DOI: 10.1016/j.matdes.2019.108040

[24] Q.A. Li, B. Gnanasekaran, Y. Fu, G.R. Liu, Prediction of Thermal Residual Stress and Microstructure in Direct Laser Metal Deposition via a Coupled Finite Element and Multiphase Field Framework, Jom 72(1) (2020) 496-508.

DOI: 10.1007/s11837-019-03922-w

[25] Z.H. Li, S. Yang, B. Liu, W.P. Liu, Z.Z. Kuai, Y.F. Nie, Simulation of temperature field and stress field of selective laser melting of multi-layer metal powder, Opt Laser Technol 140 (2021).

DOI: 10.1016/j.optlastec.2020.106782

[26] C. Teng, D. Pal, H. Gong, K. Zeng, K. Briggs, N. Patil, B. Stucker, A Review of Defect Modeling in Laser Material Processing, Addit Manuf 14(14) (2017) 137-147.

DOI: 10.1016/j.addma.2016.10.009

[27] K. Dai, L.L. Shaw, Thermal and stress modeling of multi-material laser processing, Acta Mater 49(20) (2001) 4171-4181.

DOI: 10.1016/s1359-6454(01)00312-3

[28] J. Liu, Y. Wang, S. Costil, R. Bolot, Numerical and experimental analysis of molten pool dimensions and residual stresses of NiCrBSi coating treated by laser post-remelting, Surf Coat Technol 318 (2017) 341-348.

DOI: 10.1016/j.surfcoat.2017.03.024

[29] E. Qin, B. Wang, W. Li, W. Ma, H. Lu, S. Wu, Optimized Microstructure and Properties of Cr3C2-NiCr Cermet Coating by HVOF/Laser Hybrid Processing, J Therm Spray Technol 28 (2019) 1072-1080.

DOI: 10.1007/s11666-019-00877-x

[30] H. Chen, C. Xu, Q. Zhou, I.M. Hutchings, P.H. Shipway, J. Liu, Micro-scale abrasive wear behaviour of HVOF sprayed and laser-remelted conventional and nanostructured WC-Co coatings, Wear 258(1) (2005) 333-338.

DOI: 10.1016/j.wear.2004.09.044