Effect of laser parameters on microstructure and hardness of laser clad and tempered AISI H13 tool steel

Telasang, Gururaj; Majumdar, Jyotsna Dutta; Padmanabham, G.; Tak, Manish; Manna, I.

doi:10.1016/j.surfcoat.2014.07.023

Cited by 148 publications

(59 citation statements)

References 20 publications

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“…Thus, as indicated by the Hall–Petch formula, a larger external force is necessary to overcome the obstacles of the grain boundaries and trigger grain slide, leading to a higher microhardness of the laser CL. However, it should be noted that if the laser power is too high, over‐sintering and evaporation of the metal powder may occur, finally adversely impacting the microhardness of the CL …”

Section: Resultsmentioning

confidence: 99%

“…Many studies have focused on the performance of multiple CLs because multipass CLs with larger surface areas are more convenient for performance testing. However, it is necessary to first optimize the process parameters for single‐pass CLs before preparing multipass laser CLs . In one case, the corrosion resistance of a CL was investigated by measuring the electrochemical performance of a previously ground 1 cm 2 flat area exposed to a corrosive solution .…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Electrochemical Corrosion Behaviors of Laser‐Cladded 2205 Duplex Stainless Steel

Liu

Huang

Bao

et al. 2020

steel research int.

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Herein, single-pass laser-cladded 2205 duplex stainless steel is fabricated on the surface of Q235 carbon steel at different laser powers in the range of 1.7À2.7 kW. The relationships between laser powers and geometrical characteristics, microstructure, microhardness, and corrosion resistance of the cladded layers (CLs) are analyzed. The results show that with the increase in laser power, the width and height of the bead increase, and the dilution rate and depth of the molten pool also significantly increase. Furthermore, the shape of ferrite gradually transforms from coarse to slender and eventually turns into a discontinuous vermicular shape. It is found that the CL obtained at a laser power of 2.3 kW has higher average microhardness and exhibits better corrosion resistance than the other samples (%20 times better than that of the carbon steel substrate), with its corrosion potential and corrosion current density of À0.146 V and 0.13 μA cm À2 , respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microstructure and Electrochemical Corrosion Behaviors of Laser‐Cladded 2205 Duplex Stainless Steel

Liu

Huang

Bao

et al. 2020

steel research int.

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“…He compared the surface hardness and residual stress between continuous wave (CW) and pulse mode of fibre-coupled diode laser in his experiment. Pulse laser induced higher compressive stress and higher hardness resulting into good wear and fatigue resistance on the restored surface of H13 tool steel substrate [9]. On the other hand, a minimal tensile residual stress on fused surface was reported in SLS of H13 tool steel sample treated with Nd:YAG (Neodymium-Yttrium Aluminium Garnet) laser by Ibraheem et al [5].…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical modelling of laser surface glazing for H13 tool steel

et al. 2018

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A two-dimensional thermomechanical finite element (FE) model of laser surface glazing (LSG) has been developed for H13 tool steel. The direct coupling technique of ANSYS 17.2 (APDL) has been utilised to solve the transient thermomechanical process. A H13 tool steel cylindrical cross-section has been modelled for laser power 200 W and 300 W at constant 0.2 mm beam width and 0.15 ms residence time. The model can predict temperature distribution, stress-strain increments in elastic and plastic region with time and space. The crack formation tendency also can be assumed by analysing the von Mises stress in the heat-concentrated zone. Isotropic and kinematic hardening models have been applied separately to predict the after-yield phenomena. At 200 W laser power, the peak surface temperature achieved is 1520 K which is below the melting point (1727 K) of H13 tool steel. For laser power 300 W, the peak surface temperature is 2523 K. Tensile residual stresses on surface have been found after cooling, which are in agreement with literature. Isotropic model shows higher residual stress that increases with laser power. Conversely, kinematic model gives lower residual stress which decreases with laser power. Therefore, both plasticity models could work in LSG for H13 tool steel.

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“…Several surface hardening techniques have been developed and tested on metals commonly used in the automotive industry to manufacture gears, valves, sprockets, cams, gear housings, crankshafts, and cylinder liners among others. With these techniques, different hardened layer thicknesses have been produced, for example, induction heating treatment can yield up to 3 mm thick hardened layers on AISI 1045 steel [1], plasma arc melting can produce 50 µm hardened layers on 45 steel [2], and laser quenching (LQ) reported by Telasang et al can yield 400 µm hardened layers on the surface of H13 steel [3]. Although induction heating generates thick layers, only laser surface hardening generates uniform layers in complex geometries, thus gaining research attention due to its potential industrial use.…”

Section: Introductionmentioning

confidence: 99%

Surface Laser Quenching as an Alternative Method for Conventional Quenching and Tempering Treatment of 1538 MV Steel

Carrera-Espinoza

Valerio

Villasana

et al. 2020

Advances in Materials Science and Engineering

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This paper aims at encouraging the use of laser treatment as an environmentally friendly technique to improve the mechanical properties of metallic materials over conventional quenching and tempering techniques through the study of the tribological behavior of AISI 1538 MV steel subjected to surface laser quenching treatment. Sliding wear tests were carried out by the pin-on-disk method. In order to identify the wear mechanisms, the worn surfaces on the disks were evaluated by scanning electron microscopy and the wear scars on the ball were observed by optical microscopy. Results reveal that laser treatment reduces the average friction coefficient by 25% and the wear rate by 60% compared with those achieved by the conventional methods, while the depths of the wear track and hardness of the cross section and surface are maintained.

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Effect of laser parameters on microstructure and hardness of laser clad and tempered AISI H13 tool steel

Cited by 148 publications

References 20 publications

Microstructure and Electrochemical Corrosion Behaviors of Laser‐Cladded 2205 Duplex Stainless Steel

Microstructure and Electrochemical Corrosion Behaviors of Laser‐Cladded 2205 Duplex Stainless Steel

Thermomechanical modelling of laser surface glazing for H13 tool steel

Surface Laser Quenching as an Alternative Method for Conventional Quenching and Tempering Treatment of 1538 MV Steel

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