Effects of tailored gradient interface on wear properties of WC/Inconel 718 composites using selective laser melting

Rong, Ting; Gu, Dongdong; Shi, Qimin; Cao, Sainan; Xia, Mujian

doi:10.1016/j.surfcoat.2016.09.011

Cited by 110 publications

(26 citation statements)

References 30 publications

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“…Additionally, due to the nonequilibrium solidification properties of SLM process, the γ (Fe, Ni) appears in a scope of XRD parttern, which can be affected by numerous factors, such as chemical composition, residual stress etc. The diffusion of elements at the interface matrix particles was also reported by Rong et al [43] in the case of SLM processed WC/Inconel 718 composite. Moreover, due to the high melting temperature of WC and the diffusion behavior, the large sized particles present WC 1-x phase.…”

Section: Microstructuresupporting

confidence: 73%

Selective laser melting of tungsten carbide reinforced maraging steel composite

Kang

Héraud

et al. 2018

Additive Manufacturing

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In this work, tungsten carbide (WC) reinforced maraging steel matrix composites were in-situ manufactured by selective laser melting (SLM) from powder mixture. The SLM processed samples presented high relative density (over 99%) with a homogenous distribution of WC. The as-fabricated surface quality of SLM processed samples was improved significantly by the addition of WC. Focused ion beam and transmission electron microscopy were employed to characterize the interfacial properties between tungsten carbide and steel matrix. The elemental analysis indicates that metallurgical bonding appears at interfacial region due to the diffusion. Tensile behavior of SLM processed maraging steel was different from their composite with several WC contents.

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Section: Microstructuresupporting

confidence: 73%

Selective laser melting of tungsten carbide reinforced maraging steel composite

Kang

Héraud

et al. 2018

Additive Manufacturing

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“…This led to the formation of a gradient interface between the Fig. 2 SEM showing microstructural features around the interface between the particle and the matrix: (a) NON-particle, (b) particle size of 21 lm, (c) high-magnification SEM image in the rectangle of (b), (d) particle size of 10.5 lm, (e) high-magnification SEM image in the rectangle of (d), (f) particle size of 5.25 lm, and (g) high-magnification SEM image in the rectangle of (f) matrix and the particle due to the complex reaction among chemical elements in composites as discussed in authors' previous work and thus contributed to the good interfacial bonding [13]. When large-sized WC particles were used in WC/Inconel 718, welldeveloped dendrites formed with the trunk length of 2.85-5.42 lm.…”

Section: Numerical Simulation Of Thermal Behavior Duringmentioning

confidence: 75%

“…The PRMMCs have illustrated their superiority compared with the conventional metals for significantly increased hardness, wear resistance, and hightemperature mechanical performance [8][9][10][11]. The ceramics widely used in PRMMCs include TiC [12], WC [13], CrC [14], etc. Nevertheless, the insufficient densification and inhomogeneous microstructure caused by the addition of ceramic particles are more likely to occur in PRMMCs processed via conventional technologies (like stir casting, infiltration casting, squeeze casting), which are driving the appearance of novel processing technologies to fabricate Inconel 718 composites [15].…”

Section: Introductionmentioning

confidence: 99%

The Role of Reinforcing Particle Size in Tailoring Interfacial Microstructure and Wear Performance of Selective Laser Melting WC/Inconel 718 Composites

Shi

Lin

et al. 2018

Journal of Manufacturing Science and Engineering

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In this paper, both traditional Inconel 718 parts and WC/Inconel 718 composites were fabricated by selective laser melting (SLM). The size of WC particles was observed to play a crucial role in determining the microstructural evolution, distortion, and microcracks around the WC particles, which inturn also affected the effective mechanical properties of WC/Inconel 718 composites. The use of the 5.25 μm diameter WC particles resulted in fine dendrites at the interface between the WC particle and the Inconel 718 matrix. This was attributed to the formation of an annular heat flow and radially arranged temperature gradient directions around the WC particle that increased the contact area between the matrix and the particle, thereby also improving the interfacial bonding. A sound metallurgical bonding at the interface was achieved with negligible distortion and microcracks due to a relatively uniform temperature distribution and temperature gradient (4.7 × 103 °C/mm) at the interface. This also explains the generation of dense and smooth interfacial bonding, which yielded a low average friction coefficient of 0.21. The wear properties were improved since grooves and spallation were reduced with the decrease of the WC size.

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“…The composite acquired a considerably low COF. The existence of a gradient interface has a very important role in improving the wear performance of LPBF-processed WC/Inconel 718 and TiC/Inconel 718 composites [22]. DOI: http://dx.doi.org/10.5772/intechopen.85167 5.…”

Section: Inconelmentioning

confidence: 99%

Tribological and Wear Behavior of Metal Alloys Produced by Laser Powder Bed Fusion (LPBF)

Lorusso¹

2019

Friction, Lubrication and Wear

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Laser powder bed fusion (LPBF) is an additive manufacturing technique for the production of parts with complex geometry, and it is especially appropriate for structural applications in aircraft and automotive industries. Wear is the most important cause of malfunction of mechanical systems. Abrasive wear accounts for 50% of wear in industrial situations, and it is most common in components of machines. LPBF is very attractive due to its extremely high melting and solidification rates that make possible to obtain materials with particular tribological and wear behavior than those by traditional manufacturing routes. The aim of this chapter is to investigate the different behaviors of principal metallic alloys by LPBF.

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Effects of tailored gradient interface on wear properties of WC/Inconel 718 composites using selective laser melting

Cited by 110 publications

References 30 publications

Selective laser melting of tungsten carbide reinforced maraging steel composite

Selective laser melting of tungsten carbide reinforced maraging steel composite

The Role of Reinforcing Particle Size in Tailoring Interfacial Microstructure and Wear Performance of Selective Laser Melting WC/Inconel 718 Composites

Tribological and Wear Behavior of Metal Alloys Produced by Laser Powder Bed Fusion (LPBF)

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