Mechanism of Zr in in situ-synthesized particle reinforced composite coatings by laser cladding

Yong, Yaowei; Wang, Fu; Deng, Qilin; Yang, Jing

doi:10.1007/s12598-017-0944-3

Cited by 14 publications

(9 citation statements)

References 28 publications

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“…In paper [45], the authors investigated the effect of pure zirconium on strengthening the microstructure of Ni25 coating by adding a mixture of ZrO 2 and C to the Ni25 powder, and the ceramic composite coatings were reinforced by in situ laser synthesis on AISI 1045 steel substrate. The microstructure, phase formation, microhardness and wear resistance of the composite coating were examined.…”

Section: Introductionmentioning

confidence: 99%

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Bartkowski

2022

Materials

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This paper presents preliminary tests of the parameter analysis of the Fe/ZrC coatings production process and the obtained properties. The effects of laser beam power on the obtained microstructure, chemical composition and microhardness were investigated. The tests consisted of the production of composite coatings by laser processing of initial coatings made in the form of a paste on a steel substrate. During the tests, a diode laser with a rated power of 3 kW was used. The laser processing process was carried out using a constant scanning speed laser beam of 3 m/min and four different powers of the laser beam: 500 W, 700 W, 900 W, 1100 W. It was found that it is possible to create composite coatings on a steel surface, where the matrix is made of iron-based alloy and the reinforcing phase is ZrC carbide. It was also found that reinforcing phase content decreased as laser beam power increased. A similar relationship was found for microhardness. As laser beam power increases, the microhardness of the iron-based matrix decreases, finally reaching a value lower than the heat-affected zone. It was found that the amount of hard carbide phases in the iron-based matrix affects the total hardness of the coatings. Presented study concern Fe/ZrC coatings that have not previously been produced on steel by laser processing of precoating, which may be a new contribution in the field of metal surface engineering.

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Section: Introductionmentioning

confidence: 99%

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Bartkowski

2022

Materials

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“…9 Among these technologies, laser cladding has the advantages of small deformability and good metallurgical bonding with the coatings. 10,11 It has become one of the most promising technology of surface modification, which could significantly improve surface quality of substrate. However, the coating material is quite different from the substrate material.…”

Section: Introductionmentioning

confidence: 99%

Effect of CeO₂ on crack sensitivity and tribological properties of Ni60A coatings prepared by laser cladding

Gong

Miao

et al. 2021

Advances in Mechanical Engineering

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All the time, the wear resistance of TC4 titanium alloy restricts its application in friction parts. In order to solve this problem, in this work, CeO2/Ni60A composite coatings (0, 1, 2, 3, 4 wt.% CeO2) were prepared on TC4 titanium alloy by laser cladding technology. The detection and characterization of the coatings were mainly carried out by X-ray diffraction (XRD), Scanning electron microscope (SEM), Energy-dispersive spectrometer, Vickers hardness test, and wear test. The results showed that appropriate proportion of CeO2 powder could effectively reduce the crack sensitivity of Ni60A coating on TC4 substrate. While the amount of CeO2 powder was 3wt.%, there were no obvious cracks, pores, and other defects in the coating. Coatings mainly consisted of Ti2Ni, TiC, TiB2, Ce2O3, and the substrate α–Ti. CeO2 has negligible influence on the composition of the phase, but it significantly increased the absorption rate of the powder to light, promoted the fluidity of the molten pool. Among five coatings, the average hardness of the 3Ce coating was the highest and the highest hardness value could reach 1163.7 HV0.3, which was 3.58 times higher than TC4 substrate, the friction coefficient was 0.307, and the wear rate was 1.11 × 10−5 mm3/N m, which reflected extremely high wear resistance performance. Adding an appropriate amount of CeO2 improved the microstructure of the coating, and realized the fine crystal strengthening of the coating.

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“…Among various preparation methods, the combustion synthesis technology has attracted much attention for its easy operation and low energy consumption 14–16 . In addition, the combustion synthesis has been widely used to combine with other routes to prepare composites containing ZrC 17–30 . As these ceramic particles are mainly derived from the combustion synthesis reaction, understanding the kinetic characteristics is vital to achieving a desired microstructure.…”

Section: Introductionmentioning

confidence: 99%

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

Zhao

Wang

Yao

et al. 2021

Int J Applied Ceramic Tech

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The kinetic role of C/Zr ratio in the reaction processes, combustion behaviors, and synthesized products of 70 wt.% (xC–Zr)–30 wt.% Cu was investigated. Results indicated that ZrC particles were produced by the replacement reaction between carbon atoms and Zr–Cu melt. With an increase in C/Zr ratio, more carbon atoms combined with the zirconium atoms in Zr–Cu liquid. As a result, the formation rate of massive ZrC enhanced, which shortened the ignition time of combustion reaction. On the other hand, the quantity, the lattice parameter, and the x value of synthetic ZrCx increased, while the byproduct CuyZrx compounds decreased. These effects contributed to an increase in the burning temperature and ZrCx particle size. Moreover, it is also revealed that the formation of ZrCx is a multistep process, which leads to an inhomogeneous distribution of the particle size. Results from this work offer a theoretical reference for the kinetic research of combustion synthesis and related techniques, and provide a valuable guide to the in situ synthesis of composite materials containing ZrC.

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Mechanism of Zr in in situ-synthesized particle reinforced composite coatings by laser cladding

Cited by 14 publications

References 28 publications

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Effect of CeO₂ on crack sensitivity and tribological properties of Ni60A coatings prepared by laser cladding

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

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Mechanism of Zr in in situ-synthesized particle reinforced composite coatings by laser cladding

Cited by 14 publications

References 28 publications

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Influence of Laser Beam Power on Microstructure and Microhardness of Fe/ZrC Coatings Produced on Steel Using Laser Processing—Preliminary Study on the Single Laser Tracks

Effect of CeO2 on crack sensitivity and tribological properties of Ni60A coatings prepared by laser cladding

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

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Effect of CeO₂ on crack sensitivity and tribological properties of Ni60A coatings prepared by laser cladding