Laser ablation behavior of SiO2-Nd2O3/Si-SiC-MoSi2 coated C/C composites repaired by laser cladding

Wang, Han‐Hui; Kong, Jing’an; Xu, Ming; Zhang, Pengfei; Li, Yang; Shi, Xiaohong; Li, Hejun

doi:10.1016/j.corsci.2022.110132

Cited by 17 publications

(4 citation statements)

References 31 publications

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“…The filling effect of SiO 2 plays a role in reducing friction. During the wear process between the sample and Glycyrrhiza uralensis, the weak bonding particles gradually peel off, and the worn surface is repaired by filling scratches, which plays a role in protecting the friction surface [16][17][18]. The formation of MnO 2 can improve the microhardness and corrosion resistance of the substrates [19,20].…”

Section: Microstructures Of Worn Surface 331 Samples Worn By Glycyrrh...mentioning

confidence: 99%

Wear characteristics of flat die in flat die pellet mills based on Glycyrrhiza uralensis

Ren

Shi

et al. 2022

Mater. Res. Express

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During granulation, a serious wear problem may be found in flat die as a key component of a flat die pellet mill. Specific to this problem, Glycyrrhiza uralensis was selected as the wear-causing material to investigate the wear mechanism of the flat die. Additionally, carburizing steel (20Cr and 20CrMnTi) and stainless steel (4Cr13) commonly used in flat die were adopted to conduct wear tests. To explore the influence of Glycyrrhiza uralensis powder and rods on friction and wear properties of the above three types of steel materials, a CFT-I general-purpose tester for surfaces was applied under dry friction conditions. Moreover, x-ray diffractometer (XRD), three-dimensional profilometry, scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS) were used to analyze the phase compositions, surface morphologies, and elementary compositions of the samples. As demonstrated by relevant results, the influence of Glycyrrhiza uralensis on the flat die is primarily embodied in abrasive, adhesive, and fatigue wear, and a thermal oxidation reaction occurs on the surface of the flat die. By comparing the wear conditions of the three steel materials between the powder and rods of Glycyrrhiza uralensis, it is found that flat die damages caused by glycyrrhiza rods are more severe than those of its powder. Additionally, the lowest friction coefficients are generated by 20CrMnTi, which are 0.40 and 0.88, respectively. In terms of the mean wear depth, its values are 1.2 and 2 μm, which are below those of 20Cr and 4Cr13. The results herein reveal that flat die made of 20CrMnTi have excellent wear and ductile fracture resistance characteristics. Hence, this study may provide a theoretical guide for selecting flat die materials.

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Section: Microstructures Of Worn Surface 331 Samples Worn By Glycyrrh...mentioning

confidence: 99%

Wear characteristics of flat die in flat die pellet mills based on Glycyrrhiza uralensis

Ren

Shi

et al. 2022

Mater. Res. Express

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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%

“…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. The ablative properties of the coating under 300/500 W fiber laser with wavelength of 1060-1090 nm were studied.…”

Section: Introductionmentioning

confidence: 99%

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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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Microhardness and Wear Rate Analysis on Laser Cladded Composites of AZ91D Alloy with SiC by Grey Technique

Karthick,

Loganathan,

Jagadish

et al. 2024

Lecture Notes in Mechanical Engineering

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Laser ablation behavior of SiO2-Nd2O3/Si-SiC-MoSi2 coated C/C composites repaired by laser cladding

Cited by 17 publications

References 31 publications

Wear characteristics of flat die in flat die pellet mills based on Glycyrrhiza uralensis

Wear characteristics of flat die in flat die pellet mills based on Glycyrrhiza uralensis

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

Microhardness and Wear Rate Analysis on Laser Cladded Composites of AZ91D Alloy with SiC by Grey Technique

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