Oxidation behaviors of the TiNi/Ti2Ni matrix composite coatings with different contents of TaC addition fabricated on Ti6Al4V by laser cladding

Lv, Yinghao; Li, J.; Tao, Y.F.; Li, Jun

doi:10.1016/j.jallcom.2016.04.037

Cited by 27 publications

(11 citation statements)

References 40 publications

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“…Taking Specimen 2 as an example, the transition zone (annotated by the dotted line, Figure S1a ) is mainly composed of NiTi/NiTi 2 dendrites ( Figure S1b ), derived from the reaction between Ni and Ti. 34 Figure 2 J presents a schematic illustration of A 1 and A 2 for dilution rate calculation. To enable successful metallurgical bonding of the coating and the substrate, dilution rate should be carefully controlled by tuning laser power, spot size, and scanning velocity.…”

Section: Resultsmentioning

confidence: 99%

Laser Cladding Induced Spherical Graphitic Phases by Super-Assembly of Graphene-Like Microstructures and the Antifriction Behavior

Weng

Zhang

et al. 2020

ACS Cent. Sci.

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Laser cladding coatings with excellent wear resistance behaviors are prepared on a titanium alloy substrate with a new precursor material system comprising nanoscale B 4 C and Ni60A self-fluxing alloy powder. Structural analysis reveals the existence of micron-size spherical or nearly spherical graphitic phases in the prepared coatings, which are composed of graphene-like microstructures closely associated with other reinforcement phases of high hardness such as TiC and CrB. The formation mechanism of these graphitic phases involves in situ superassembly of uncombined C atoms via repeated growth and reorientation of the graphene-like microstructures and is closely related to the laser processing parameters as well as the precursor compositions. The coexistence of these heterogeneous phases enable the obtained coatings with high wear resistance and low friction coefficient. It was found that the wear resistance of the coating has a remarkable 43.67 times enhancement than that of the titanium alloy while simultaneously showing a low friction coefficient (∼0.35). The understanding of the formation mechanism on the graphene-related novel microstructures with significantly improved mechanical properties is expected to lay the foundation for future developments and applications of graphene and its related carbon materials, such as large-scale production and further incorporation into composite materials with desired local structures.

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Section: Resultsmentioning

confidence: 99%

Laser Cladding Induced Spherical Graphitic Phases by Super-Assembly of Graphene-Like Microstructures and the Antifriction Behavior

Weng

Zhang

et al. 2020

ACS Cent. Sci.

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“…There are many methods of making composite coatings. These are, for example, laser cladding technology [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 11 , 12 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ], traditional surfacing technologies [ 28 , 29 , 30 , 31 ] or laser processing of pre-coat [ 32 , 33 ]. Regardless of the production method used, it is important to obtain a composite microstructure, where the reinforcing phase will be clearly separated from the metal matrix.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing Technology and Properties of Fe/TaC Metal Matrix Composite Coatings Produced on Medium Carbon Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Bartkowski

2021

Materials

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The paper presents study results of Fe/TaC metal matrix composite coatings produced on tool steel using laser processing of TaC pre-coat. The Fe/TaC coatings were produced in two steps. First, a pre-coat in the form of a paste based on tantalum carbide and water glass was made and then applied to the steel substrate. In the second step, the TaC pre-coat was remelted with steel substrate using a diode laser beam with a rated power of 3 kW. A constant scanning speed of the laser beam of 3 m/min and three types of laser beam power: 500 W, 800 W and 1100 W were applied. Tests were carried out on three different thicknesses of the TaC pre-coat: 30 µm, 60 µm and 90 µm. The influence of pre-coat thickness and laser beam power on the microstructure, chemical composition and microhardness were analyzed. A possibility of producing coatings with a characteristic composite structure was found, where the iron from the substrate became the matrix, and the introduced tantalum carbides—the reinforcing phase. It was found that too high power of the laser beam leads to complete melting of the introduced primary TaC particles. It was also found that the use of a thicker TaC pre-coat contributes to microhardness increase.

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“…Ti6Al4V is widely used in aerospace, petroleum, the chemical industry, and other fields due to its high specific strength and good corrosion resistance [1][2][3]. However, its poor wear resistance property restricts its application [4].…”

Section: Introductionmentioning

confidence: 99%

TiBCN-Ceramic-Reinforced Ti-Based Coating by Laser Cladding: Analysis of Processing Conditions and Coating Properties

Zhang

Bai

et al. 2019

Coatings

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In this paper, TiBCN-ceramic-reinforced Ti-based coating was fabricated on a Ti6Al4V substrate surface by laser cladding. The correlations between the main processing parameters and the geometrical characteristics of single clad tracks were predicted by linear regression analysis. On this basis, the microstructure, microhardness, corrosion resistance, and wear resistance of the coating and the substrate were investigated. The results showed that the clad height, clad width, clad depth, and dilution rate depended mainly on the laser power, the powder feeding rate, and the scanning speed. TiBCN-ceramic-reinforced Ti-based coating was mainly composed of directional dendritic TiBCN phases, equiaxed TiN phases, needle-like Al3Ti phases, and Ti phases. The microhardness gradually increased from the bottom to the top of the coating. The highest microhardness of coating was 1025 HV, which was three times higher than that of the Ti6Al4V substrate (350 HV). Furthermore, the coating exhibited excellent corrosion resistance and wear resistance. The corrosion potential (Ecorr) reached −1.258 V, and the corrosion density (Icorr) was 4.035 × 10−5 A/cm2, which was one order lower than that of the Ti6Al4V substrate (1.172 × 10−4 A/cm2). The coating wear mass loss was 4.35 mg, which was about two-third of the wear mass loss of the Ti6Al4V substrate (6.71 mg).

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Oxidation behaviors of the TiNi/Ti2Ni matrix composite coatings with different contents of TaC addition fabricated on Ti6Al4V by laser cladding

Cited by 27 publications

References 40 publications

Laser Cladding Induced Spherical Graphitic Phases by Super-Assembly of Graphene-Like Microstructures and the Antifriction Behavior

Laser Cladding Induced Spherical Graphitic Phases by Super-Assembly of Graphene-Like Microstructures and the Antifriction Behavior

Manufacturing Technology and Properties of Fe/TaC Metal Matrix Composite Coatings Produced on Medium Carbon Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

TiBCN-Ceramic-Reinforced Ti-Based Coating by Laser Cladding: Analysis of Processing Conditions and Coating Properties

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