Abstract
The paper presents the study results of laser modification of FeB–Fe2B surface layers produced on Vanadis-6 steel using pack cementation method. Microstructure, x-ray phase analysis, chemical composition study using wave dispersive spectrometry method, microhardness, corrosion resistance as well as surface condition, roughness, and wear resistance were investigated. The diffusion boronizing processes were performed at 900 °C for 5 h in the EKabor® powder mixture. The boronized layers had a dual-phase microstructure composed of two types of iron borides, FeB and Fe2B, and their microhardness ranged from 1800 to 1400 HV. The laser surface modification was carried out on specimens after diffusion boronizing process using CO2 laser with a nominal power of 2600 W. Laser beam power used in this experiment was equal to 1040 W and was constant. While the three values of scanning speed were used: 19, 48, and 75 mm/s. During laser modification, the multiple tracks were made where distance between of axis tracks was equal to 0.5 mm. As a result of this process, microstructure consisted of remelted zone, heat-affected zone, and substrate was obtained. In remelted zone, the boron-martensite eutectic was observed. Boronized layers after laser modification were characterized by the mild gradient of microhardness from surface to the substrate and their value was dependent on the scanning speed used and was between 1700 and 1100 HV. Corrosion resistance tests revealed reducing the current of corrosion in case of laser modification process. Wear resistance of laser modified specimens was improved in comparison to diffusion boronized layers.
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References
Czerwinski F. (2012) Thermochemical treatment of metals. Chapter 5 “Heat treatment—conventional and novel applications, book edited by Frank Czerwinski
Hudáková M, Jurči P, Sedlická V (2012) Diffusion boronizing of Cr-V ledeburitic steels. METAL 2012 - Conference Proceedings, 21st International Conference on Metallurgy and Materials pp 939–946
Lou DC, Akselsen OM, Onsøien MI, Solberg JK, Berget J (2006) Surface modification of steel and cast iron to improve corrosion resistance in molten aluminium. Surf Coat Tech 200:5282–5288
Bartkowska A, Swadźba R, Popławski M, Bartkowski D (2016) Microstructure, microhardness, phase analysis and chemical composition of laser remelted FeB-Fe2B surface layers produced on Vanadis-6 steel. Opt Laser Technol 86:115–125
Bartkowska A, Bartkowski D, Przestacki D, Talarczyk M (2016) Microstructure and selected properties of boronized layers produced on C45 and CT90 steels after modification by diode laser. Archives Mechanical Technol Materials 36:51–58
Balandin YA (2005) Termochemical treatment in fluidized bed. Surface hardening of die steel by diffusion boronizing, borocopperizing and borochromizing in fluidized bed. Met Sci Heat Treat 47:103–106
Bartkowska A, Pertek A, Jankowiak M, Jóźwiak K (2012) Laser surface modification of borochromizing C45 steel. Arch Metall Mater 57:211–214
Sikorski K, Wierzchoń T, Bieliński P (1998) X-ray microanalysis and properties multicomponent plasma-borided layers on steels. J Mater Sci 33:811–815
Bartkowska A, Pertek A (2014) Laser production of B-Ni complex layers. Surf Coat Tech. 248:23–29
Bartkowska A, Pertek A, Popławski M, Bartkowski D, Przestacki D, Miklaszewski A (2015) Effect of laser modification of B-Ni complex layer on wear resistance and microhardness. Opt Laser Technol 72:116–124
Jurči P, Cejp J, Brajer J (2011) Metallurgical aspects of laser surface processing of PM Cr-V ledeburitic steel. Adv Mater Sci Eng 2011:8. https://doi.org/10.1155/2011/563410
Kąc S, Kusiński J, Hnat S, Woldan A (1999) The microstructure and properties of SWV9 steel after laser melting. Surface Engineering Poland 5:365–368
Colaço R, Pina C, Vilar R (1999) Influence of the processing conditions on the abrasive wear behaviour of a laser surface melted tool steel. Scripta Mater 41:715–721
Gopalakrishnan P, Shzankar P, Subba Rao RV, Sundar M, Ramakrishnan SS (2001) Laser surface modification of low carbon borided steels. Scripta Mater. 44:707–712
Bartkowska A, Pertek-Owsianna A, Bartkowski D (2015) Corrosion resistance of C45 steel after diffusion and laser boriding. Materials Engineering Poland, https://doi.org/10.15199/28.2015.2.6
Dobrzański LA, Jonda E, Labisz K, Bonek M, Klimpel A (2010) The comparision of tribological properties of the surface layer of the hot work tool steels obtained by laser alloying. JAMME 42:142–147
Morimoto J, Ozaki T, Kubohori T, Morimoto S, Abe N, Tsukamoto M (2009) Some properties of boronized layers on steels with direct diode laser. Vacuum 83:185–189
Bartkowski D, Młynarczak A, Piasecki A, Dudziak B, Gościański M, Bartkowska A (2015) Microstructure, microhardness and corrosion resistance of Stellite-6 coatings reinforced with WC particles using laser cladding. Opt Laser Technol 68:191–201
Bartkowski D, Kinal G (2016) Microstructure and wear resistance of Stellite-6/WC MMC coatings produced by laser cladding using Yb:YAG disk laser. Int J Refract Met H 58:157–164
Leunda J, García Navas V, Soriano C, Sanz C (2011) Effect of laser tempering of high alloy powder metallurgical tool steels after laser cladding. Phys Procedia 12:345–352
Bartkowski D, Bartkowska A (2017) Wear resistance in the soil of Stellite-6/WC coatings produced using laser cladding method. Int J Refract Met H 64:20–26
Bourithis L, Papadimitriou G (2003) Boriding a plain carbon steel with the plasma transferred arc process using boron and chromium diboride powders: microstructure and wear properties. Mater Lett 57:1835–1839
Kusiński J (2000) Lasery i ich zastosowanie w inżynierii materiałowej (lasers and their application in materials engineering). Wydawnictwo Naukowe Akapit, Kraków
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This article was financially supported within the project “Engineer of the Future. Improving the didactic potential of the Poznan University of Technology” - POKL.04.03.00-00-259/12, implemented within the Human Capital Operational Programme, co-financed by the European Union within the European Social Fund.
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Bartkowska, A., Bartkowski, D., Swadźba, R. et al. Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser. Int J Adv Manuf Technol 95, 1763–1776 (2018). https://doi.org/10.1007/s00170-017-1304-z
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DOI: https://doi.org/10.1007/s00170-017-1304-z