Diode Laser Surface Alloying of Armor Steel with Tungsten Carbide

Janicki, D.; Górka, Jacek; Kwaśny, W.; Gołombek, K.; Kondracki, M.; Żuk, Marcin

doi:10.1515/amm-2017-0072

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…The laser beam, besides laser welding [8,9,10], is also used e.g. for laser surface melting (LSM) and alloying (LSA) [11,12]. Additionally, the laser beam is also used for hybrid methods combining the beneficial effects of laser beam welding and different arc and plasma welding processes [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Landowski

2019

Advances in Materials Science

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Laser welding is used in modern industry, having many advantages comparing to traditional welding technologies. Nowadays, industry sectors such as shipbuilding, automotive and aviation can’t be imagined without laser processing technologies. Possibility of increase of welded joint properties, autogenous welding and high level of process automation makes the technology of laser welding perspective part of the industry. Physical multidimensional processes complexity requires a deeper understanding of the impact of laser welding parameters on the quality of welded joints for industrial implementation. The paper presents results of microstructure investigations of laser beam welded stainless steel under various welding parameters. Welded joints was achieved by Ytterbium fiber laser type without the use of the filler material. Material for test was 2205 ferritic-austenitic duplex stainless steel (DSS) plates with thickness of 8 mm in delivery condition. The objectives of this research was to investigate influence of laser welding parameters on weld geometry of butt-welded joints. Investigations of bead shape revealed correlation between laser beam focus position and weld penetration depth.

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Section: Introductionmentioning

confidence: 99%

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Landowski

2019

Advances in Materials Science

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“…Considerable research has been devoted to laser surface modification methods, such as laser surface melting (LSM) and alloying (LSA) processes [3,4]. The LSA currently appears to be a leading method due to mainly altering the surface chemical composition [5,6]. Inherent rapid solidification and cooling involved in laser surface modification processes provide a unique opportunity for non-equilibrium synthesis of novel materials [7].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Sliding Wear Behaviour of In-Situ TiC-Reinforced Composite Surface Layers Fabricated on Ductile Cast Iron by Laser Alloying

Janicki

2018

Materials

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TiC-reinforced composite surface layers (TRLs) on a ductile cast iron EN-GJS-700-2 grade (DCI) substrate were synthesized using a diode laser surface alloying with a direct injection of titanium powder into the molten pool. The experimental results were compared with thermodynamic calculations. The TRLs having a uniform distribution of the TiC particles and their fraction up to 15.4 vol % were achieved. With increasing titanium concentration in the molten pool, fractions of TiC and retained austenite increase and the shape of TiC particles changes from cubic to dendritic form. At the same time, the cementite fraction decreases, lowering the overall hardness of the TRL. A good agreement between experimental and calculated results was achieved. Comparative dry sliding wear tests between the as-received DCI, the TRLs and also laser surface melted layers (SMLs) have been performed following the ASTM G 99 standard test method under contact pressures of 2.12 and 4.25 MPa. For both the as-received DCI and the SMLs, the wear rates increased with increasing contact pressure. The TRLs exhibited a significantly higher wear resistance than the others, which was found to be load independent.

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“…The laser technique is becoming more popular. The use of laser beams is also becoming a good option to be used in laser surface melting (LSM) and laser surface alloying (LSA) in addition to laser welding [19][20][21][22][23]. Furthermore, laser beams are also used in combination with other methods, such as different arc and plasma welding processes to create a hybrid in order to achieve the beneficial effect of both processes [24].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Corrosion Behavior of Laser Welded 2205 Duplex Stainless-Steel in Artificial Seawater Environment under Different Acidity and Alkalinity Conditions

et al. 2021

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The electrochemical corrosion behavior of laser welded 2205 duplex stainless-steel in artificial seawater environment (3.5% NaCl solutions) with different acidity and alkalinity conditions (different pH values) was investigated using different techniques. Namely, capacitance measurements (Mott–Schottky approach), electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The formation of pitting corrosion on the exposure surfaces of the tested duplex stainless-steel samples was investigated and confirmed by characterizing the surface morphology using field emission scanning electron microscope (FE-SEM). Based on the obtained results, a proportional relation has been found between pH value of the solution medium and the generated film resistance due to the processes of charge transfer, which directly affecting the pitting formation and its specifications. Since the film layer composition created on the duplex stainless-steel surface is changes depending on the pH value, it was found that different bilayer structure type was generated according to the acidity or alkalinity level. The presented bilayer is almost composed from metal oxides, such as iron oxide and chromium oxide, as confirmed by Raman Spectroscopy technique. As the pits size and its quantity increased with decreasing pH value, it can be concluded that the corrosion resistance property of the laser welded 2205 duplex stainless-steel sample is improved on the alkalinity direction of the solution. Vice versa, higher acidic solution has more ability for corrosion.

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Diode Laser Surface Alloying of Armor Steel with Tungsten Carbide

Cited by 8 publications

References 16 publications

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Influence of Parameters of Laser Beam Welding on Structure of 2205 Duplex Stainless Steel

Microstructure and Sliding Wear Behaviour of In-Situ TiC-Reinforced Composite Surface Layers Fabricated on Ductile Cast Iron by Laser Alloying

Electrochemical Corrosion Behavior of Laser Welded 2205 Duplex Stainless-Steel in Artificial Seawater Environment under Different Acidity and Alkalinity Conditions

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