Kinetic role of C/Zr ratio in the reaction process, combustion behavior, and synthetic product of 70 wt.% (xC–Zr)–30 wt.% Cu

Zhao, Xianrui; Wang, Hongtao; Yao, Hai-Long; Ding, Yi; Fang, Yihang

doi:10.1111/ijac.13872

Cited by 2 publications

(2 citation statements)

References 43 publications

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“…6 Zr in BZC30 is relatively higher. This would restrain the dissolution of Zr-rich phases for the limited solubility of ZrCu liquid, 18) as supported by the occurrence of less solidification structure in Fig. 7.…”

Section: Influence Of Cu Content On the Reaction Processmentioning

confidence: 88%

Reaction Mechanism of Combustion Synthesized ZrC–2ZrB2-Based Cu Cermets

Zhao

et al. 2023

Mater. Trans.

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The reaction process of ZrC2ZrB 2 -based Cu cermets from the (1 ¹ x wt.%)(1B 4 C3Zr)x wt.%Cu system (Zr/B 4 C = 3 in molar ratio) was explored. Results showed that ZrC and ZrB 2 were mostly produced through the dissolution of B 4 C into a preformed ZrCu liquid. With an increase in x, the synthetic ZrC2ZrB 2 and generated heat were reduced. This effect decreased an ability for ZrCu liquid to propagate in the reactants, and restrained the dissolution Zr. As a result, the complete synthesis of ZrC2ZrB 2 failed in the systems with a higher Cu content (e.g., 50 wt.%). Furthermore, after the precipitation of ZrC and ZrB 2 , the liquid surrounding would prevent ZrC and ZrB 2 from growing. Increasing Cu content enhanced the amount of ZrCu melt. This behavior contributed to a decline in ZrC2ZrB 2 particle sizes, and the production of fine ceramic particles (³200 nm). It is also revealed that the formation of ZrC2ZrB 2 is a multistep process, which results in the inhomogeneity of ZrC2ZrB 2 particle sizes. A valuable approach was proposed to explore the relationship between reaction process and synthesized products of combustion synthesis-related technique.

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Section: Influence Of Cu Content On the Reaction Processmentioning

confidence: 88%

Reaction Mechanism of Combustion Synthesized ZrC–2ZrB2-Based Cu Cermets

Zhao

et al. 2023

Mater. Trans.

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“…The experimental results showed that the C/Zr ratio had a great influence on the synthesis. The control of C/Zr ratio could effectively improve the product synthesis rate and the remanufacturing efficiency of ZrC (Zhang et al, 2021). Qi et al prepared a new Fe based composite coating based on TiC and CeO 2 for high value vulnerable parts of shield machine.…”

Section: Related Workmentioning

confidence: 99%

Preparation and mechanical properties of LC cladding layer for friction parts

Jiang

2024

Front. Mech. Eng.

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Introduction: In the actual engineering operation, there are some components facing high frequency friction, which have high damage rate and poor direct replacement benefit. In order to achieve sustainable resource utilization and more effective component remanufacturing, research was conducted on the cladding layer of friction components.Methods: Based on the idea of remanufacturing, taking 42CrMo as the raw material of engine piston pin hole, laser cladding technology and ultrasonic rolling technology are used to prepare the cladding layers of Fe, Ni and Co three different substrates.Results and Discussion: The experimental results showed that the Co based cladding layer with ultrasonic rolling technology performed best. The surface roughness reduced by 1.02 μm, only 0.14 μm. The microhardness increased by 101.39%, with 795.38 HV. The friction coefficient was 0.051. The friction rate at high temperature decreased by 85.71%, and it was 1.2%. The friction at high temperature was reduced by 79.24%, with 0.9%.Conclusion: Co based cladding layer combined with ultrasonic rolling technology shows the best performance, which can effectively realize the remanufacturing of engine piston pin hole, providing technical reference and data support for the remanufacturing process of high-frequency friction components.

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Kinetic role of C/Zr ratio in the reaction process, combustion behavior, and synthetic product of 70 wt.% (xC–Zr)–30 wt.% Cu

Cited by 2 publications

References 43 publications

Reaction Mechanism of Combustion Synthesized ZrC–2ZrB<sub>2</sub>-Based Cu Cermets

Reaction Mechanism of Combustion Synthesized ZrC–2ZrB<sub>2</sub>-Based Cu Cermets

Preparation and mechanical properties of LC cladding layer for friction parts

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