Effects of diamond size on the deposition characteristic and tribological behavior of diamond/Ni60 composite coating prepared by supersonic laser deposition

Yang, Lijing; Li, Bo; Yao, Jianhua; Li, Zhihong

doi:10.1016/j.diamond.2015.06.014

Cited by 35 publications

(15 citation statements)

References 36 publications

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“…Wear performance assessments also confirmed that diamond grains brazed by laser heating are qualified for grinding [10,11]. However, literatures [12,13] show that the graphitization and cracking on the surface of the brazed diamond grains by laser heating can result in poor wear resistance and even fracture failure of brazed diamond tools, and were associated with the high brazing temperatures induced by laser heating [14,15]. Only a few investigations have been devoted to the relation between laser heating parameters and brazing quality because the temperature induced by laser pulse heating is not easily measured [16,17].…”

Section: Introductionmentioning

confidence: 78%

Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Wang

Huang

et al. 2019

Metals

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A 3D finite element (FE) model is built to numerically analyze heating parameters on temperature during brazing diamond grains by the pulsed laser spot heating. A pulsed Nd:YAG laser is used for experimental validation. The results show that during laser heating, the temperature varies periodically because of the pulsed heat flux. Four key thermal indices, the maximum temperature Tmax, the minimum temperature Tmin, the average temperature Tav and the temperature fluctuation amplitude ΔT are addressed. The primary factor affecting Tmax, ΔT and Tav is the pulse power and on Tmin is the pulse frequency. The secondary effect factor on Tmax, Tav and ΔT is the pulse width and on Tmin is the pulse power. For engineering practice, the order of designing heating parameters is recommended as: pulse power, second frequency and last width.

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Section: Introductionmentioning

confidence: 78%

Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Wang

Huang

et al. 2019

Metals

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“…3. Besides, many other researchers also found that diamond films can significantly improve the tribological performance of substrates [33][34][35][36]. Composed by nontoxic carbon, nano-crystalline diamond also shows wonderful biocompatibility and hemocompatibility [37,38].…”

Section: Discussionmentioning

confidence: 99%

Improving the long-term stability of Ti6Al4V abutment screw by coating micro/nano-crystalline diamond films

Xie

Zhou

Wei

et al. 2016

Journal of the Mechanical Behavior of Biomedical Materials

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“…This reduction in capital and operating costs means that SLD may be viable in many applications, for which CS has proved too costly allowing the fully solid process route found in CS to find a use in a wider range of applications. A variety of material coatings such as Cu, Ti, Stellite 6, Ni60, Al-Cu and Al-Si alloys, have been successfully prepared with SLD technique [4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Abstract : Supersonic Laser Deposition Materials Prmentioning

confidence: 99%

Research progress of supersonic laser deposition technology

Yao¹,

Kovalenko²

2016

The Paton Welding J.

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Supersonic laser deposition is a new coating and fabrication process, in which a supersonic powder stream generated in cold spray impinges onto a substrate which is simultaneously irradiated with a laser. It will be increasingly employed for depositing coatings and metal additive manufacturing because of its unique advantages: solid-state deposition of dense, homogeneous and pore-free coatings onto a range of substrate, high build rate at reduced operating costs without the use of expensive gas heating and large volumes of helium, and opening up a new opportunity for efficiently depositing high hardness metallic powders which are usually difficult to be deposited solely by cold spray. Based on the current research results in our group, this paper systematically reviews state-of-the-art of supersonic laser deposition technique at home and abroad, from the viewpoints of materials selection, process optimization, properties characterization, equipment design and so on. The existing issues in these aspects are deeply analyzed, and the corresponding solutions are tentatively proposed. Meanwhile, the potential industrial applications of supersonic laser deposition in various fields are elaborated in detail, as well as the future perspectives and challenges facing this technology, in order to provide insight for further investigations and innovation in supersonic laser deposition as an emerging combination additive re-manufacturing technology with high efficiency, low cost and high quality. 16 Ref., 18 Figures. K e y w o r d s : supersonic laser deposition, materials, process parameters, performances, applicationsSupersonic laser deposition (SLD) is a newly developed technology in the field of laser material processing, which can be used for surface modification and coating of engineering components for increased functionality [1][2][3]. This technology combines the supersonic powder beam found in cold spray (CS) with laser heating of the deposition site. In SLD, a laser heats both the spraying particles and the substrate to 30-80 % of their melting point, thus significantly reducing the strength of the particles and substrate, and allowing the particles to plastically deform and build up a coating at an impact velocity about half of that in CS.SLD technology has been increasingly employed for coating deposition because of its technological and economic advantages over conventional coating methods, namely solid-state deposition of dense, homogeneous and pore-free coatings onto a range of substrates; high deposition rate at reduced operating costs without the use of expensive heating and process inert gases; less sensitivity to feedstock materials characteristics; consolidation of difficultto-deposit powders; and significant improvements in the properties of coating materials. More importantly, lower processing temperatures and shorter processing time of SLD technique will enable the coating, and fabrication of near-net shape components with little or no melting, thus avoiding the deleterious effects of high-temperatur...

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Effects of diamond size on the deposition characteristic and tribological behavior of diamond/Ni60 composite coating prepared by supersonic laser deposition

Cited by 35 publications

References 36 publications

Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Numerical Analysis of the Effects of Pulsed Laser Spot Heating Parameters on Brazing of Diamond Tools

Improving the long-term stability of Ti6Al4V abutment screw by coating micro/nano-crystalline diamond films

Research progress of supersonic laser deposition technology

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