Repair of SiC coating on carbon/carbon composites by laser cladding technique

Wang, Han‐Hui; Li, Hejun; Shi, Xiaohong; Liu, Xuesong; Kong, Jing’an; Zhou, Hang

doi:10.1016/j.ceramint.2020.05.005

Cited by 22 publications

(6 citation statements)

References 20 publications

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“…The defect-free layer was deposited to fill the grooves such as structure, and the technique was proved to be a new automated repairing process. Wang et al 51 repaired the SiC-coated carbon composite layer using an LC process with optimized process parameters. The repaired coating shows better mechanical bonding with fewer internal defects as compared to the damaged coating.…”

Section: Lc Processmentioning

confidence: 99%

State-of-the-art review on laser cladding process as an in-situ repair technique

Raj

Maity

Das

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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The present work reviews the laser cladding process as a repairing technique and the conventional repairing techniques and different heat source models. In this review work, the authors have tried to address the various traditional methods studied for repairing and surface modification. The dominantly used heat source model for numerical modelling of the repairing techniques and the mechanism of the laser cladding process, along with its advantages over the conventional repairing techniques, is also reviewed. This paper also focuses on the predominantly used laser of high power for the cladding process and the effect of process parameters on the quality of the clad layer. The different materials used as clad materials for repairing purposes during the laser cladding process have also been discussed briefly. In this paper, the authors have surveyed literature from different regions of the globe and considered the literature since 1969. This review discusses the various conventional repairing techniques used for repairing, heat source model, process parameters, and different materials used in the laser cladding process. The authors have also briefed the advantages, disadvantages, and application in each of the sections. The use of laser cladding for in-situ repairing process, development of a precise model, use of low-power laser, and application of laser cladding for actual engineering components was also considered in future research work.

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Section: Lc Processmentioning

confidence: 99%

State-of-the-art review on laser cladding process as an in-situ repair technique

Raj

Maity

Das

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Among them, the main preparation technologies for anti-oxidation coatings include pack cementation, chemical vapor deposition (CVD), plasma spraying, slurry painting, sol-gel, reactive infiltration, chemical vapor reaction (CVR), in situ formation, laser cladding, etc. [5][6][7][8][9][10][11][12]. The main matrix modification technologies include chemical vapor infiltration/ deposition, precursor infiltration and pyrolysis, reactive melt infiltration method, slurry infiltration/impregnation, hot pressing method, etc.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, there are many literature reports on the high-temperature oxidation resistance modification of C/C composites [14] or the preparation of high-temperature oxidation resistance coating on its surface [15]. However, the preparation of ZrB 2 -ZrC-SiC ultrahigh temperature composite ceramic coatings with resistance to 1600 • C on C/C composites based on laser cladding technology has not been reported in the literature [7][8][9][10][11][12]. Wang et al [7] prepared the inner Si-SiC-MoSi 2 and outer SiO 2 -Nd 2 O 3 double layer coating on C/C composites using slurry-based laser cladding technology.…”

Section: Introductionmentioning

confidence: 99%

High Temperature Oxidation and Oxyacetylene Ablation Properties of ZrB2-ZrC-SiC Ultra-High Temperature Composite Ceramic Coatings Deposited on C/C Composites by Laser Cladding

2023

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In order to improve the high temperature oxidation and ablation resistance of C/C composites, ZrB2-ZrC-SiC ultra-high temperature composite ceramic coatings were prepared on C/C composites by laser cladding using Zr, B4C, and Si as raw materials. The microstructure of the coating was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Air isothermal oxidation (1600 °C, 80 min) and oxyacetylene flame ablation (2400 kW/m2, 300 s) were used to evaluate the high-temperature oxidation and ablation properties of the coating, respectively. The results show that the microstructure of laser cladding coating is a totem of black and white. The white part is mainly the first solidified high melting point ZrB2 phase, and the black part is the latter solidified eutectic structure, which is mainly composed of ZrB2(ZrB12)-ZrC or ZrB2(ZrB12)-SiC two phases. After oxidation at 1600 °C and 80 min, the coating is mainly composed of ZrO2 and ZrSiO4 phases, and ZrSiO4 is basically distributed among ZrO2 particles. The high temperature oxidation and ablation properties of the coating are better than the C/C composite matrix, and the mass ablation rate of the coating is about 1/4 of the latter.

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“…Due to the high-quality characteristics of low porosity, low dilution ratio, and crack-free, laser cladding has been widely used to prepare various high-performance composite cladding layers [ 28 ]. In addition to improving material performance, laser cladding can also repair material surface defects, which is also the focus of material research in recent years [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Dai

Guo

et al. 2021

Materials

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We prepared three kinds of Ni based alloy cladding coatings on 316L stainless steel at different power levels. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope, and SEM. The hardness of the cladding layer was measured, and the wear resistance of it was tested by a friction instrument. The results show that the effect of laser cladding is good, and it has good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase in laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ–Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3, and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear, and abrasive wear. However, the wear of the cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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Repair of SiC coating on carbon/carbon composites by laser cladding technique

Cited by 22 publications

References 20 publications

State-of-the-art review on laser cladding process as an in-situ repair technique

State-of-the-art review on laser cladding process as an in-situ repair technique

High Temperature Oxidation and Oxyacetylene Ablation Properties of ZrB2-ZrC-SiC Ultra-High Temperature Composite Ceramic Coatings Deposited on C/C Composites by Laser Cladding

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

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