Pulsed Laser Cladding of Ni Based Powder

Pascu, Alexandru; Stanciu, Elena Manuela; Croitoru, Cătălin; Roată, Ionuţ Claudiu; Țierean, Mircea Horia

doi:10.1088/1757-899x/209/1/012058

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…Laser cladding is a technology in which the metal surface is melted by using a high-energy laser beam to form a molten pool, and the metal powder is deposited on the metal surface under the action of laser energy. The resulting clad layer exhibits unique properties influenced by various parameters, including laser power, scanning speed, and cladding process parameters [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Analyses and Research on a Model for Effective Thermal Conductivity of Laser-Clad Composite Materials

Li,

Lin,

Murengami

et al. 2023

Materials

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Composite materials prepared via laser cladding technology are widely used in die production and other fields. When a composite material is used for heat dissipation and heat transfer, thermal conductivity becomes an important parameter. However, obtaining effective thermal conductivity of composite materials prepared via laser cladding under different parameters requires a large number of samples and experiments. In order to improve the research efficiency of thermal conductivity of composite materials, a mathematical model of Cu/Ni composite materials was established to study the influence of cladding-layer parameters on the effective thermal conductivity of composite materials. The comparison between the model and the experiment shows that the model’s accuracy is 86.7%, and the error is due to the increase in thermal conductivity caused by the alloying of the joint, so the overall effective thermal conductivity deviation is small. This study provides a mathematical model method for studying the thermodynamic properties of laser cladding materials. It provides theoretical and practical guidance for subsequent research on the thermodynamic properties of materials during die production.

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Section: Introductionmentioning

confidence: 99%

Analyses and Research on a Model for Effective Thermal Conductivity of Laser-Clad Composite Materials

Li,

Lin,

Murengami

et al. 2023

Materials

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“…In laser cladding, a defocused laser beam is utilized as a heating source, and, as a result, the preplaced or synchronously fed/injected powders, as well as a thin layer of the substrate, melt and solidify quickly, producing a metallurgical bond [7,11,21]. Outstanding metallurgical adhesion to the substrate, precision, and minimal dilution are desired and achieved by laser cladding, an improvement compared to most conventional methods [22,23]. The coatings thus obtained are generally characterized by a homogenous fine-grained microstructure and relatively excellent wear resistance and hardness [7,23].…”

Section: Introductionmentioning

confidence: 99%

“…Outstanding metallurgical adhesion to the substrate, precision, and minimal dilution are desired and achieved by laser cladding, an improvement compared to most conventional methods [22,23]. The coatings thus obtained are generally characterized by a homogenous fine-grained microstructure and relatively excellent wear resistance and hardness [7,23]. Moreover, the purposefully designed and controlled microstructures of such coatings can improve the bone-implant interface strength [7].…”

Section: Introductionmentioning

confidence: 99%

Modulated Laser Cladding of Implant-Type Coatings by Bovine-Bone-Derived Hydroxyapatite Powder Injection on Ti6Al4V Substrates—Part I: Fabrication and Physico-Chemical Characterization

et al. 2022

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The surface physico-chemistry of metallic implants governs their successful long-term functionality for orthopedic and dentistry applications. Here, we investigated the feasibility of harmoniously combining two of the star materials currently employed in bone treatment/restoration, namely, calcium-phosphate-based bioceramics (in the form of coatings that have the capacity to enhance osseointegration) and titanium alloys (used as bulk implant materials due to their mechanical performance and lack of systemic toxicity). For the first time, bovine-bone-derived hydroxyapatite (BHA) was layered on top of Ti6Al4V substrates using powder injection laser cladding technology, and then subjected, in this first stage of the research, to an array of physical-chemical analyses. The laser processing set-up involved the conjoined modulation of the BHA-to-Ti ratio (100 wt.% and 50 wt.%) and beam power range (500–1000 W). As such, on each metallic substrate, several overlapped strips were produced and the external surface of the cladded coatings was further investigated. The morphological and compositional (SEM/EDS) evaluations exposed fully covered metallic surfaces with ceramic-based materials, without any fragmentation and with a strong metallurgical bond. The structural (XRD, micro-Raman) analyses showed the formation of calcium titanate as the main phase up to maximum 800 W, accompanied by partial BHA decomposition and the consequential advent of tetracalcium phosphate (markedly above 600 W), independent of the BHA ratio. In addition, the hydrophilic behavior of the coatings was outlined, being linked to the varied surface textures and phase dynamism that emerged due to laser power increment for both of the employed BHA ratios. Hence, this research delineates a series of optimal laser cladding technological parameters for the adequate deposition of bioceramic layers with customized functionality.

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Laser cladding of nanoparticle TiC ceramic powder: Effects of process parameters on the quality characteristics of the coatings and its prediction model

Chen

et al. 2019

Optics & Laser Technology

106

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Pulsed Laser Cladding of Ni Based Powder

Cited by 3 publications

References 14 publications

Analyses and Research on a Model for Effective Thermal Conductivity of Laser-Clad Composite Materials

Analyses and Research on a Model for Effective Thermal Conductivity of Laser-Clad Composite Materials

Modulated Laser Cladding of Implant-Type Coatings by Bovine-Bone-Derived Hydroxyapatite Powder Injection on Ti6Al4V Substrates—Part I: Fabrication and Physico-Chemical Characterization

Laser cladding of nanoparticle TiC ceramic powder: Effects of process parameters on the quality characteristics of the coatings and its prediction model

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