A Review on Microstructural Features and Mechanical Properties of Wheels/Rails Cladded by Laser Cladding

Wang, Xinlin; Lei, Lei; Yu, Han

doi:10.3390/mi12020152

Cited by 25 publications

(19 citation statements)

References 72 publications

(128 reference statements)

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“…With the rapid development of high-speed and heavy-haul railway lines, the risk of rail damage and failure is increasing [27,28]. In order to improve the rail wear and RCF resistance, the select laser melting(SLM) additive manufacturing technology, also called laser melting, have been adopted by many researchers to produce an enhanced layer on the rail top surfaces [29].…”

Section: Railsmentioning

confidence: 99%

State-of-the-Art Review on Additive Manufacturing Technology in Railway Infrastructure Systems

Kaewunruen

2021

J. Compos. Sci.

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Additive manufacturing technologies, well known as three-dimensional printing (3DP) technologies, have been applied in many industrial fields, including aerospace, automobiles, shipbuilding, civil engineering and nuclear power. However, despite the high material utilization and the ability to rapidly construct complex shaped structures of 3D printing technologies, the application of additive manufacturing technologies in railway track infrastructure is still at the exploratory stage. This paper reviews the state-of-the-art research of additive manufacturing technologies related the railway track infrastructure and discusses the challenges and prospects of 3D printing technology in this area. The insights will not only help the development of 3D printing technologies into railway engineering but also enable smarter railway track component design and improve track performance and inspection strategies.

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Section: Railsmentioning

confidence: 99%

State-of-the-Art Review on Additive Manufacturing Technology in Railway Infrastructure Systems

Kaewunruen

2021

J. Compos. Sci.

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“…Laser direct energy deposition (LDED) is a LAM technique that uses the powder feeder [9,10]. During its processing, the laser beam melts the powder and forms a molten pool to achieve the manufacture, surface repair and surface modification of the specimen [11,12]. For example, high-strength TiC-NiTi composites are manufactured using LDED [13]; functional gradient material of Ti6Al4V/316L with different proportions has been successfully fabricated using laser melting deposition [14].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Mechanical Properties of Needle-like ZrB2 Reinforced Cu Composites Manufactured by Laser Direct Energy Deposition

Zhan

Cao

2022

Micromachines

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Laser additive manufacturing is an advanced material preparation technology, which has been widely used to prepare various materials, such as polymers, metals, ceramics and composites. Zirconium diboride (ZrB2) reinforced copper composite material was fabricated using laser direct energy deposition technology. The microstructure and phase composition of the composite material were analyzed, and the influence of laser energy density on the microstructure and mechanical properties of composite materials was discussed. The results showed that the needle-like ZrB2 ceramic reinforcement was successfully synthesized via an in-situ synthesis reaction. The composites were mainly composed of needle-like ZrB2, Ni dendrites and a Cu matrix. The morphological changes of Ni dendrites could be observed at the interface inside the composite material: cellular crystals → large-sized columnar dendrites → small-sized dendrites (along the solidification direction). The continuous Ni dendritic network connected the ZrB2 reinforcements together, which significantly improved the mechanical properties of the composite material. At a laser energy density of 0.20 kJ/mm2, the average microhardness of the composite material reached 294 HV0.2 and the highest tensile strength was 535 MPa. With the laser energy density increased to 0.27 kJ/mm2, the hardness and tensile strength decreased and the elongation of the Cu composites increased due to an increase in the size of the ZrB2 and a decrease in the continuity of the Ni dendritic.

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“…The typical solidification structure, including the planar crystal in the interface, dendritic crystal in the central region and cellular crystal near the top surface of deposition, would be presented. The deposition layer possess high hardness, high strength but low ductility [ 18 , 19 ]. However, the rapid melting and solidification would result in the residual stress, especially the tensile residual stress, which is a negative factor for the mechanical properties [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

2022

Self Cite

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Owing to the unparalleled advantages in repairing of high value-add component with big size, fabricating of functionally graded material, and cladding to enhance the surface properties of parts, the laser material deposition (LMD) is widely used. Compared to the continuous wave (CW) laser, the controllability of the laser energy would be improved and the temperature history would be different under the condition of pulse wave (PW) laser through changing the pulse parameters, such as duty cycle and pulse frequency. In this paper, the research status of temperature field simulation, surface quality, microstructural features, including microstructures, microhardness, residual stress, and cracking, as well as corrosion behavior of metallic coating created by pulsed laser material deposition have been reviewed. Furthermore, the existing knowledge and technology gaps are identified while the future research directions are also discussed.

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A Review on Microstructural Features and Mechanical Properties of Wheels/Rails Cladded by Laser Cladding

Cited by 25 publications

References 72 publications

State-of-the-Art Review on Additive Manufacturing Technology in Railway Infrastructure Systems

State-of-the-Art Review on Additive Manufacturing Technology in Railway Infrastructure Systems

Microstructure Evolution and Mechanical Properties of Needle-like ZrB2 Reinforced Cu Composites Manufactured by Laser Direct Energy Deposition

A Review on Macroscopic and Microstructural Features of Metallic Coating Created by Pulsed Laser Material Deposition

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