Parametric study on laser nitriding of 1.5919 steel

Psyllaki, P.; Griniari, A.; Pantelis, D.I.

doi:10.1016/j.jmatprotec.2007.05.023

Cited by 10 publications

(6 citation statements)

References 20 publications

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“…Hardness, wear resistance as well as corrosion resistance can be increased by applying an element or substance during laser processing and performing an alloying of the surface layer [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ]. One of the elements that can increase hardness and wear resistance is silicon.…”

Section: Introductionmentioning

confidence: 99%

“…Nitrogen is another alloying element that can be added to the surface layer to improve its properties. Research on the laser nitriding of steel parts has shown that, by this method, high hardness, good wear, and corrosion resistance can be achieved [ 19 , 20 , 21 ]. Research on steel has shown that depending on the parameters of the laser treatment, a two to four fold increase in the hardness of the alloy layer can be reached.…”

Section: Introductionmentioning

confidence: 99%

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The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

Paczkowska

2022

Materials

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The aim of this research was to compare the effects of laser treatment, with the same heating conditions, using four selected alloying substances (silicon, cobalt, silicon nitride and titanium), in the surface layer of nodular cast iron. The treatment was performed with a molecular laser. As the microstructure observation revealed, the greatest amount of implemented elements was diluted during the treatment in a solid solution. In all cases (except during the alloying process with cobalt), in the alloying zone, a fine and homogeneous microstructure was found. In the alloying zone, cobalt counteracted the formation of the martensitic microstructure so effectively that austenite turned into exclusively fine perlite (or bainite at most). The size of the obtained alloyed zone was different, despite the same laser heat treatment parameters. A 30% smaller depth of zone after laser alloying with silicon nitride, as compared with alloying with cobalt or silicon, was observed. The highest strengthening of the alloyed zone could be expected when silicon (hardness was approx. 980HV0.1 and the modulus of elasticity was 208 GPa) and titanium (hardness was approx. 880HV0.1 and the modulus of elasticity was 194 GPa) were used. The lowest hardness (700HV0.1) was observed for the zone alloyed with cobalt due to pearlite (or bainite) existence.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

Paczkowska

2022

Materials

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“…while the surface is treated to provide the necessary surface properties (corrosion or wear resistance, for example) [1]. In order to enhance the surface properties, producers of components are turning to different surface treatments and in particular to hard protective coatings [2].Surface nitriding to form a hard protective layer is widely used to upgrade surface hardness, wear and corrosion resistance and fatigue strength of steels [3]. For a few decades, TiAlN coatings have been applied to tools, dies, and many mechanical parts due to their excellent properties especially at high temperature, low density, high hardness, good electrical and thermal conductivity, high melting point, and high corrosion resistance [4, 5, and 6].…”

Section: Introductionmentioning

confidence: 99%

Formation of Ti-Al-N Dispersed Layer on Steel Surface by TIG Melting in a Reactive Environment

Dyuti

Mridha

Shaha

2011

AMR

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In this study an attempt has been made to produce titanium-aluminium dispersed hard nitride layer on mild steel surfaces by preplacement of 50 % Ti and 50 % Al powder mixture and then melting with TIG torch under nitrogen environment. Parameter such as heat input of the torch was varied between 540, 608 and 675 J/mm and its effect on the resolidified melt pool was studied. Glazing under all energy inputs produced more than 1mm thick resolidified clad layer. The microstructural analysis revealed the clad layer with dispersion of dendrites of Ti-Al nitrides and Ti- Al intermetallic in ferrite matrix. The concentration of dendrites were found to be maximum near the surface and decreased at deeper depths.The maximum hardness of the modified surface layer was found to be 900 Hv compared to180 Hv of the mild steel substrate.

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“…In order to enhance the surface properties, producers of components are turning to different surface treatments and in particular to hard protective coatings (Podgornik et al, 2001). Surface nitriding to form a hard protective layer is widely used to upgrade surface hardness, wear and corrosion resistance and fatigue strength of steels (Psyllaki et al, 2008). For a few decades, TiAlN coatings have been applied to tools, dies and many mechanical parts due to their excellent properties especially at high temperature, low density, high hardness, good electrical and thermal conductivity, high melting point and high corrosion resistance (Yoon et al, 2002;Munz, 1986;Zukerman et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…A wide variety of methods are available to produce a hard coating layer including PVD, CVD, Laser surface cladding, Thermal spraying, Ion implantation (Psyllaki et al, 2008;Dutta Majumdar et al, 2008;Lopez et al, 2005). Surface melting treatments using high energy densities generate steep thermal gradients, which allow rapid solidification and at present, these have been achieved by electron beam processing or laser re-melting (Khan et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Mild Steel Using Tungsten Inert Gas Torch Surface Cladding

Dyuti¹

2010

American Journal of Applied Sciences

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Problem statement: There is an increasing demand for claddings which possess an optimized combination of different functional properties such as high hardness, high resistance to wear and oxidation. In this respect, hard TiAlN cladding has gained much attention. These claddings can be suitable replacements for the conventional ceramic coatings applied in many components of chemical plants and automotive industries to protect against high temperature oxidation and wear. Approach: In this study the possibility of the formation of intermetallic and nitride claddings on plain carbon steel surfaces by in situ melting of preplaced titanium and aluminum powder mixture under Tungsten Inert Gas (TIG) torch had been investigated. Results: Addition of 1.3 and 1.8 mg mm^-2 Ti and Al powder and melting at energy inputs between 540-675 J mm^-1 in nitrogen environment successfully created more than 1 mm thick clad layer consisting of a mixture of titanium-aluminum nitrides and aluminides. All resolidified melt layers produced dendrite microstructures; the dendrite concentration is more near the surface area compared to the deeper melt depth. A maximum surface hardness of around 900 Hv was developed in most of the tracks and this hardness corresponds to high concentration of dendrites within the modified layer. Oxidation at 600°C for 72 h, of the clad steel gave weight gains of 0.13 mg mm^-2, compared to 0.37 mg mm^-2 for the substrate. Conclusion: The results showed that clad steel gave better mechanical and oxidation properties compared to plain carbon steel substrate

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Parametric study on laser nitriding of 1.5919 steel

Cited by 10 publications

References 20 publications

The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

The Comparison of the Effects of Nodular Cast Iron Laser Alloying with Selected Substances

Formation of Ti-Al-N Dispersed Layer on Steel Surface by TIG Melting in a Reactive Environment

Surface Modification of Mild Steel Using Tungsten Inert Gas Torch Surface Cladding

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