Wear resistance in the soil of Stellite-6/WC coatings produced using laser cladding method

Bartkowski, Dariusz; Bartkowska, Aneta

doi:10.1016/j.ijrmhm.2016.12.013

Cited by 81 publications

(44 citation statements)

References 25 publications

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“…Increasing of wear and corrosion resistance, as well as reduction the brittleness of boronized layers can be obtained by modification of these layers using chromium [1,6,7], nickel [8][9][10], and copper [6]. To achieve this purpose, the diffusion methods [1,6,8]; laser methods (e.g., laser hardening [11][12][13], laser remelting [4,7,14], laser alloying [15][16][17], laser cladding [18][19][20][21]); as well as the electroplating [8][9][10] or thermal spraying methods [22] can be applied. Laser remelting of boronized layers allows changes in their microstructure and properties.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Bartkowska

Bartkowski

Swadźba

et al. 2017

Int J Adv Manuf Technol

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The paper presents the study results of laser modification of FeB-Fe 2 B surface layers produced on Vanadis-6 steel using pack cementation method. Microstructure, x-ray phase analysis, chemical composition study using wave dispersive spectrometry method, microhardness, corrosion resistance as well as surface condition, roughness, and wear resistance were investigated. The diffusion boronizing processes were performed at 900°C for 5 h in the EKabor® powder mixture. The boronized layers had a dual-phase microstructure composed of two types of iron borides, FeB and Fe 2 B, and their microhardness ranged from 1800 to 1400 HV. The laser surface modification was carried out on specimens after diffusion boronizing process using CO 2 laser with a nominal power of 2600 W. Laser beam power used in this experiment was equal to 1040 W and was constant. While the three values of scanning speed were used: 19, 48, and 75 mm/s. During laser modification, the multiple tracks were made where distance between of axis tracks was equal to 0.5 mm. As a result of this process, microstructure consisted of remelted zone, heat-affected zone, and substrate was obtained. In remelted zone, the boron-martensite eutectic was observed. Boronized layers after laser modification were characterized by the mild gradient of microhardness from surface to the substrate and their value was dependent on the scanning speed used and was between 1700 and 1100 HV. Corrosion resistance tests revealed reducing the current of corrosion in case of laser modification process. Wear resistance of laser modified specimens was improved in comparison to diffusion boronized layers.

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Section: Introductionmentioning

confidence: 99%

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Bartkowska

Bartkowski

Swadźba

et al. 2017

Int J Adv Manuf Technol

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“…The LDED process is usually applied to engineered components. Especially, the LDED process has been utilized for coating of layer-materials with wear and corrosion resistance on base materials such as dies and tools 3 , or repairing engineered components and products such as turbine blades [4][5][6] . In addition, processing of compositionally graded materials can be realized by effectively leveraging the LDED system with using multiple powder feeders.…”

Section: Multi-beam Laser Directed Energy Deposition (Multi-beam Ldedmentioning

confidence: 99%

Effects of Laser-Beam Defocus on Microstructural Features of Compositionally Graded WC/Co-Alloy Composites Additively Manufactured by Multi-Beam Laser Directed Energy Deposition

Kunimine

Miyazaki

Yamashita

et al. 2020

Sci Rep

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Establishing processing routes for obtaining metal-matrix composites (MMCs) with uniformly-dispersed reinforcements is one of the main subjects in additively manufactured composite materials to achieve designed microstructures and mechanical properties. Here we report on the microstructural features of compositionally graded WC/Co-alloy composites additively manufactured by multi-beam laser directed energy deposition (multi-beam LDED). For tailoring microstructures of compositionally graded WC/ Co-alloy composites with uniformly-dispersed reinforcements, the combinational method: the laserbeam defocus function in the multi-beam LDED system and granulated powder was attempted. By laser defocusing in the multi-beam LDED system, composites with uniformly-dispersed WC particles in Co alloy matrix was successfully obtained due to melting of Co bond in WC-12 wt.%Co granulated particles. It was found that the laser defocusing of multi-beam lasers affects temperature increase of flying powder during the laser focusing area, resulting in change of processing mode from melt-pool mode to thermal spray mode. The preferable property gradients in the WC/Co-alloy composites could be obtained by controlling the feeding rate of the powders and laser-beam defocus. These experimental results demonstrated the effectiveness of the laser-beam-defocus function in the multi-beam LDED system as a key factor for tailoring microstructures of additively-manufactured functionally graded MMCs with uniformly-dispersed reinforcements.

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“…Owing to uneven heating in the welding process, the temperature gradient in the surfacing welding process is large, leading to high welding stress, deformation, and even cracking. The strengthening thickness of gas-phase deposition coatings is relatively thin [2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Brazing Temperature on the Microstructure and Chosen Properties of WC–10Ni/NiCrBSi Composite Coatings Produced by Vacuum Cladding from Flexible Coated Cloths

Xu¹,

Ding²,

Xia³

et al. 2019

Coatings

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Three kinds of WC–10Ni/NiCrBSi composite coatings were prepared on the surface of Q235 carbon steel at 1015, 1055, and 1095 °C by vacuum brazing. The microstructure and properties of the composite coatings were investigated. The results showed that various reaction layers appeared at the bonding area of the coatings and the substrate. As the brazing temperature increased, the reaction layer between the solder and the hard phase gradually decreased and disappeared at 1095 °C. Simultaneously, the size of gray-white massive phases with a large amount of W in the brazing layer decreased gradually. When the brazing temperature increased, the Fe content markedly increased in the reaction layer of the matrix and the solder, indicating that the increase in brazing temperature was beneficial for metallurgical bonding between the coating and the substrate. Interface bonding strength and wear resistance were enhanced by the increase in brazing temperature; however, the microhardness of the composite coating section decreased. The interface bonding strength reached 362.9 MPa and the wear loss reached a minimum at 1095 °C.

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Wear resistance in the soil of Stellite-6/WC coatings produced using laser cladding method

Cited by 81 publications

References 25 publications

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Microstructure, chemical composition, wear, and corrosion resistance of FeB–Fe2B–Fe3B surface layers produced on Vanadis-6 steel using CO2 laser

Effects of Laser-Beam Defocus on Microstructural Features of Compositionally Graded WC/Co-Alloy Composites Additively Manufactured by Multi-Beam Laser Directed Energy Deposition

Effect of Brazing Temperature on the Microstructure and Chosen Properties of WC–10Ni/NiCrBSi Composite Coatings Produced by Vacuum Cladding from Flexible Coated Cloths

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