Improving wear resistance of pure copper by laser surface modification

Li, Mingyu; Chao, Mingju; Liang, Erjun; Yu, Jumei; Zhang, Junji; Li, Dechuan

doi:10.1016/j.apsusc.2011.10.006

Cited by 37 publications

(15 citation statements)

References 23 publications

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“…According to refs. [49][50][51], hardness and wear resistance are directly correlated. The results of this study also indicate that the composite's wear resistance increases as the CMC's hardness increases.…”

Section: Resultsmentioning

confidence: 99%

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

et al. 2023

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Herein, the effect of Ti2SnC MAX phase reinforcement and friction stir back extrusion (FSBE) parameters on the microstructure, mechanical, electrical, and tribological behavior of Cu‐Ti2SnC composite is investigated. The results indicate that, depending on the rotational speed of the extrusion process, an equiaxed grain microstructure with a uniform distribution of reinforcing particles is formed after the extrusion process. Comparing the extruded samples to the unprocessed samples reveals a larger grain size after extrusion. The absence of MAX phase particles causes the formation of finer grain size in the extruded sample. Under the influence of heat and plastic strain, a reactive layer containing a solid solution of Cu(Sn) or Cu3Sn compounds is formed at the interface of the particle and the copper matrix. By performing the extrusion process, the reactive layer at the interface is broken and scattered on the copper matrix. Furthermore, by applying MAX phase reinforcing particles and performing the extrusion process, the copper matrix's hardness, tensile strength, and wear resistance increase by 128, 99, and 84%, respectively. The five vol% Ti2SnC MAX phases in the extruded copper matrix composite wire results in 7.3% reduction in electrical conductivity.

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Section: Resultsmentioning

confidence: 99%

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

et al. 2023

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“…It was found that after modification, the sample hardness increased by a factor of six, and the electrical conductivity decreased slightly. The increase in mechanical properties has been attributed to the precipitation hardening of boride and carbide [26]. Laser surface treatment also has applications toward increasing the abrasive wear resistance of the treated material.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of the Copper Alloyed with Ag and Ti Powders Using Fiber Laser

2020

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The scope of the work covers the development of the relationship between the chemical composition of surface-modified copper and the diffusion of alloy elements as well as the microstructure and mechanical properties. This article presents the impact of laser alloying with titanium and silver powders on the microstructure and mechanical properties of copper. In order to investigate the phenomena occurring during the laser alloying process, microstructural studies were performed using scanning electron microscopy (SEM), optical microscopy, and energy dispersive x-ray spectroscopic (EDS) analysis of the chemical composition in micro-areas. In addition, to test the properties of the resulting alloy, abrasion resistance, hardness measurement at low loading force, and conductivity measurements were performed. As a result of alloying with Ag and Ti powders, three distinct zones were indeed recognized: re-melting zone (RZ), diffusion zone (DZ), and heat affected zone (HAZ). The surface modification that results from laser alloying increases the hardness as well as the abrasion resistance of the material. Overall, it was found that laser alloying with Ti powder increased the strength of the copper surface layer due to the formation of intermetallic phases (Cu3Ti2). It was also found that laser alloying with Ag powder changed the mechanical properties of the surface layer due to the solid solution strengthening.

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“…On the one hand, the interfacial binding region between coating and substrate has a lower strength due to mechanical bonding of electroplating and thermal spraying technology. Therefore, a mould copper plate often has the phenomenon that the electroplating coating is susceptible to being peeled off due to the high temperature and washing action of liquid steel [6]. On the other hand, low hardness of electroplating coatings is not helpful to obtain a long service life of a mould copper plate.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Ni–Co Composite Cladding Coating on Mould Copper Plate

Liu

Gao

et al. 2019

Materials

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In this study, a Ni–Co composite coating was fabricated successively on a copper substrate by laser, and the microstructure and properties of the composite coating were studied. Our results show that the elements from Ni and Co alloy powder were uniformly distributed in the binding region, which obtained a good metallurgical bonding with the substrate. The microhardness of Co-based coatings was 646 HV0.1, which was approximately 7.6 times greater than the hardness of Cu substrate. The Ni-based coating hardness was a little lower than that of the Co-based coating, which was approximately 7.0 times higher than the hardness of Cu substrate. The Co-based coating was comprised of reinforced phases, such as Co, Ni–Cr–Co–Mo, M7C3 and {Fe, Ni}. The wear volume of Co-based coatings was approximately 0.164 mm3 after the sliding wear test at 60 min, which was only 4% of the substrate’s wear volume. Meanwhile, the heat shock resistance experiment was carried out at 800 °C for 75 times before the Ni–Co composite coating was peeled off. It was shown that this Ni–Co composite coating had good wear resistance and high temperature properties, which is helpful to improve the service life of a mould copper plate. It not only saves the economic cost of steel plants, but also improves the quality of slabs and products.

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Improving wear resistance of pure copper by laser surface modification

Cited by 37 publications

References 23 publications

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Microstructure and Properties of the Copper Alloyed with Ag and Ti Powders Using Fiber Laser

Microstructure and Properties of Ni–Co Composite Cladding Coating on Mould Copper Plate

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Improving wear resistance of pure copper by laser surface modification

Cited by 37 publications

References 23 publications

Effects of Ti2SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti2SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Microstructure and Properties of the Copper Alloyed with Ag and Ti Powders Using Fiber Laser

Microstructure and Properties of Ni–Co Composite Cladding Coating on Mould Copper Plate

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Product

Resources

About

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite