influence of laser energy density on acquisition and wear

  • influence of laser energy density on acquisition and wear

  • 20G steel is a common carbon steel used to manufacture boilers. The performance of 20G steel is basically the same as that of 20# steel. The requirements for impact toughness, strain aging impact value and cold bending of 20G steel are increased. The yield ratio of 20G steel is slightly higher, and certain fatigue and corrosion resistance are required for influence of laser energy density on acquisition and wear steel to ensure the safe operation of boilers. 20G steel is suitable for manufacturing marine boilers, steam boilers and other boiler accessories with pressure less than 6Mpa and wall temperature less than 450 °C.

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Selective Laser Melting Additive Manufacturing of TiC influence of laser energy density on acquisition and wear

The influence of laser energy density (LED) on densification behavior, microstructural evolution, microhardness and wear properties of SLM-processed TiC/AlSi10Mg nanocomposites was studied. It influence of laser energy density on acquisition and wearReview: Wear performance of metal parts fabricated by influence of laser energy density on acquisition and wearoptimized combination of processing parameters increases part density, which further improves the wear resistance.Porosity, Hardness, Friction and Wear Performance Analysis influence of laser energy density on acquisition and wearVED and laser power influence on hardness and friction and wear were studied on one factor at a time basis. Optimum laser power and scanning speed, optimum laser energy density values that achieve higher surface microhardness, minimum wear and porosity of H13 steel material were obtained from this experimental study.

Physical Characteristics of Coupled Plasma and Its influence of laser energy density on acquisition and wear

(1) The laser beam has significant influence on the shape, characteristic and energy distribution of the arc, and at the same time, the energy and transmission characteristics of this arc will be changed to some extent under the effect of the laser beam, which will modify the energy coupling, temperature distribution, fluid flow behavior and further influence the welding process.Negative ion density measurements by laser photo influence of laser energy density on acquisition and weardefined by the beam diameter, by a short duration laser pulse with sufficient photon energy (h) to exceed the electron binding energy of the selected negative ion, A-. This process can be written in the form A-+ h A + e. The photo-detached electrons temporally increase the electron density in the laser beam path and can beMicrostructure and Wear Behavior of Nano-TiB2p/2024Al influence of laser energy density on acquisition and wearThe purpose of this study is to investigate the effect of TiB 2 content on the microstructure and wear behavior of nano-TiB 2p /2024Al composites fabricated by laser direct energy deposition (L-DED). The dry sliding friction and wear behavior was evaluated using a ball-on-disk tribometer by sliding samples against a 6-mm diameter GCr15 (AISI52100) steel ball under applied loads of 2.2 N at influence of laser energy density on acquisition and wear

Laser cladding technique for erosive wear applications: a influence of laser energy density on acquisition and wear

Jan 21, 2020 · Further, the wear test results of above mention cladding were compared with that of uncoated AISI 304 steel. Maximum micro-hardness of 705 HV for the clad material was achieved at laser power density of 32 J mm 2 and it decreased with increase in the laser power density upto 52 J mm 2. Stellite-6 cladding exhibited significantly higher influence of laser energy density on acquisition and wearKinetics of Nanostructuring Processes of Material Surface influence of laser energy density on acquisition and wearwith an ArF laser at a total energy density in the center of the spot of about 4 J/cm2, the number of pulses is 20, and a repetition rate of 2 Hz. The period of the structures is from 40 to 120 nm, their amplitude is 4070 nm. The rounded shape of the obtained nanoreliefs indicates the surface melting by laser radiation and further influence of laser energy density on acquisition and wearJ.A. Vreeling, V. Ocelik, YT Pel, J.T.M. DeHossonSecondly, the high local energy density at the surface makes the bulk properties of the workpiece unimpaired. Consequently, laser processing is suitable for treating selected areas of the surface of a workpiece. In addition, complex shaped workpieces can be treated because the laser light can be easily directed by optical means.

Influence of the modes of laser alloying on the parameters influence of laser energy density on acquisition and wear

Laser alloying reduces the wear of 20Kh13 steel by a factor of 56 under a contact pressure of 0.29 MPa and cuts it in half under 0.42 MPa. The wear of 12Kh18N10T steel is reduced by a factor of influence of laser energy density on acquisition and wearInfluence of the laser pulse duration on spectrochemical influence of laser energy density on acquisition and wearThe experiments were carried out in air at atmospheric pressure with a constant energy density of 20 J/cm2. Because the decay rate of the spectral emission depends on the laser pulse duration, the optimum detection requires an optimization of the temporal gating acquisition parameters.Influence of processing parameters on selective laser influence of laser energy density on acquisition and wearSep 09, 2019 · With the increase of the laser energy density, the amount of SiC in the SLMed samples decreased due to the enhanced reaction between the aluminum matrix and SiC to form needle-like Al4C3 and Si. Gu et al. investigated the influence of the starting SiC particle size on the characteristics of SLMed 20 wt% SiCp/AlSi10Mg composites. According to the results, the composite formability could

Influence of laser surface engineering of AISI P20 influence of laser energy density on acquisition and wear

The wear and corrosion characteristics of a mold steel (AISI P20-improved, KP4M) were investigated before and after the laser surface engineering. The laser surface engineering of AISI P20-improved steel was conducted at different laser energy densities by a high-power diode laser.Cited by: 7Publish Year: 2019Author: Changkyoo Park, Ahjin Sim, Sanghoon Ahn, Heeshin Kang, Eun-Joon ChunInfluence of laser surface engineering of AISI P20 influence of laser energy density on acquisition and wearNov 15, 2019 · Only limited studies have reported the effect of laser-assisted surface modification on the wear and corrosion resistances of steels. Telasang et al. reported the influence of laser surface hardening and melting on the wear and corrosion behavior of AISI H13 tool steel [ 20 ].Cited by: 7Publish Year: 2019Author: Changkyoo Park, Ahjin Sim, Sanghoon Ahn, Heeshin Kang, Eun-Joon ChunInfluence of laser irradiation on deposition influence of laser energy density on acquisition and wearMar 01, 2018 · The low energy inputting along with the cooling effect of a large volume of high pressure carrier gas in SLD process makes the temperature of particles/substrate not sufficient to melt, which ensure the preservation of original fine microstructure/phase composition and achieve the successful solid state deposition of hard material due to softening effect induced by laser irradiation. 3.5. Influence of laser irradiation on wear

Influence of laser energy distribution on laser surface influence of laser energy density on acquisition and wear

Dec 01, 2019 · Laser surface microstructure can improve the friction properties, biomedical properties and optical properties of materials. In this paper, a two-dimensional finite element model based on temperature-dependent surface tension is proposed to study the effects of different laser energy density distributions on surface morphology.Cited by: 1Publish Year: 2019Author: Xiaofang Xu, Xiaohan Yang, Jingbo Li, Sen Pan, Yong Bi, Yongfeng GaoIn-Situ TiC Particle Reinforced 316L Stainless Steel influence of laser energy density on acquisition and wearFigure 5 shows the influence of the applied laser energy density on the characteristics microstructures in the SLM-processed composites. It was seen that grains are slightly of different sizes, may be due to the varying thermal heat fluxes during every scanning tracks. Nevertheless, a careful comparison of the microscopic features of these im. ages revealed some distinct . variations with the applied laser energy density.ITP Materials: High Energy Density Coating of High influence of laser energy density on acquisition and wearprocessing conditions. The processing conducted at lower energy density (2025 W/cm2) of IR lamp produced the harder (> 1.5 times) coating layer than those processed at higher energy density (2350 W/cm2). Similar trends for hardness of the coatings produced by laser based technique were observed.

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