Effect of laser power on microstructure and tribological behavior of laser clad NiCr coating
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Sun Chengwen
Abstract
NiCr coatings were prepared on H13 steel by laser cladding with different laser power. The microstructure and phases of the obtained coatings were analyzed using a super depth of field microscope and X-ray diffraction, respectively, and the effect of laser power on the friction–wear performance at high-temperature was investigated using a friction tester. The results show that the laser clad NiCr coatings fabricated at the different laser powers are composed of Cr2Ni3 and FeNi3 phases, and the porosity is decreased from 1.28 % to 0.48 % with the increase of laser power. The average coefficients of friction of NiCr coatings are decreased with the increase of laser power, and the wear rate of NiCr coating fabricated at the laser power of 1400 W power is the lowest among the three kinds of coatings, showing that the suitable laser power can improve the surface quality and wear resistance of NiCr coating.
References
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Nanocrystalline PbS thin film produced by alkaline chemical bath deposition: effect of inhibitor levels and temperature on the physicochemical properties
- Effect of laser power on microstructure and tribological behavior of laser clad NiCr coating
- Mechanical characterization and evaluation of pitting corrosion resistance of a superferritic stainless steel model alloy 25Cr–6Mo–5Ni
- Factors dictating the extent of low elongation in high sulfur-containing bainitic steels
- Effect of process parameters on mechanical properties and wettability of polylactic acid by fused filament fabrication process
- Critical systematic investigation of the Cd–Ce system: phase stability and Gibbs energies of formation and equilibria via thermodynamic description
- Experimental study of the phase relations of the Fe–Pt–Ho ternary system at 500 °C
- Ultraviolet-B radiation from Gd (III) doped hardystonite
- Photoluminescence features of trivalent holmium doped Ca2La8(SiO4)6O2 phosphors
- Thermal stability of Al3BC3 powders under a nitrogen atmosphere
- News
- DGM – Deutsche Gesellschaft für Materialkunde
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Nanocrystalline PbS thin film produced by alkaline chemical bath deposition: effect of inhibitor levels and temperature on the physicochemical properties
- Effect of laser power on microstructure and tribological behavior of laser clad NiCr coating
- Mechanical characterization and evaluation of pitting corrosion resistance of a superferritic stainless steel model alloy 25Cr–6Mo–5Ni
- Factors dictating the extent of low elongation in high sulfur-containing bainitic steels
- Effect of process parameters on mechanical properties and wettability of polylactic acid by fused filament fabrication process
- Critical systematic investigation of the Cd–Ce system: phase stability and Gibbs energies of formation and equilibria via thermodynamic description
- Experimental study of the phase relations of the Fe–Pt–Ho ternary system at 500 °C
- Ultraviolet-B radiation from Gd (III) doped hardystonite
- Photoluminescence features of trivalent holmium doped Ca2La8(SiO4)6O2 phosphors
- Thermal stability of Al3BC3 powders under a nitrogen atmosphere
- News
- DGM – Deutsche Gesellschaft für Materialkunde
