Additive layer manufacture of Inconel 625 metal matrix composites, reinforcement material evaluation

Cooper, David E.; Blundell, N.; Maggs, Steven J.; Gibbons, Gregory John

doi:10.1016/j.jmatprotec.2013.06.021

Cited by 99 publications

(28 citation statements)

References 18 publications

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“…Copper et al [241] comprehensively studied the effects on the microstructure and hardness of Inconel 625 during powder-bed laser additive manufacturing. The authors separately used SiC, TiC and Al 2 O 3 dispersed with the Inconel 625 raw powder.…”

Section: In Additive Manufacturingmentioning

confidence: 99%

Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice

Oliveira

Santos

Miranda

2020

Progress in Materials Science

418

126

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Additive manufacturing technologies based on melting and solidification have considerable similarities with fusion-based welding technologies, either by electric arc or high-power beams. However, several concepts are being introduced in additive manufacturing which have been extensively used in multipass arc welding with filler material. Therefore, clarification of fundamental definitions is important to establish a common background between welding and additive manufacturing research communities. This paper aims to review these concepts, highlighting the distinctive characteristics of fusion welding that can be embraced by additive manufacturing, namely the nature of rapid thermal cycles associated to small size and localized heat sources, the non-equilibrium nature of rapid solidification and its effects on: internal defects formation, phase transformations, residual stresses and distortions. Concerning process optimization, distinct criteria are proposed based on geometric, energetic and thermal considerations, allowing to determine an upper bound limit for the optimum hatch distance during additive manufacturing. Finally, a unified equation to compute the energy density is proposed. This equation enables to compare works performed with distinct equipment and experimental conditions, covering the major process parameters: power, travel speed, heat source dimension, hatch distance, deposited layer thickness and material grain size.

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Section: In Additive Manufacturingmentioning

confidence: 99%

Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice

Oliveira

Santos

Miranda

2020

Progress in Materials Science

418

126

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“…Addition of chromium carbide Cr 3 C 2 in alloy Inconel 625 gave good results in terms of wear resistance, due to the partial dissolution of Cr 3 C 2 in the metallic matrix and reprecipitation of fine Cr-rich M 7 C 3 carbides [8]. Titanium carbides (TiC) were also deemed very promising for use as reinforcement in Inconel 625 [67] and Inconel 690 [68]. Minimal dissolution of TiC was observed in Inconel 690 [68], leading to the formation of fine dendritic M 23 C 6 .…”

Section: Nickel and Nickel Alloys Matrix Compositesmentioning

confidence: 99%

On the Role of Interfacial Reactions, Dissolution and Secondary Precipitation During the Laser Additive Manufacturing of Metal Matrix Composites: A Review

Mertens¹,

Lecomte-Beckers²

2016

New Trends in 3D Printing

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Since current trends in the transportation, energy or mechanical industries impose increasingly demanding service conditions for metallic parts, metal matrix composites MMCs are the object of a growing interest. Powder-based laser additive manufacturing, which allows making parts with complex shapes, appears particularly adapted for the production of MMCs. This paper reviews the current state-of-the-art in the production of MMCs by additive processes, with the aim of assessing the potentials and difficulties offered by these techniques. Two main processing routes are envisaged, i.e. the processing of ex situ composites in which the reinforcing phase as a powder often of ceramic particles is directly mixed with the powder of the matrix alloy, and both powders are simultaneously processed by the laser."lternatively, the reinforcing phase can be produced in situ by a chemical reaction during the fabrication of the composite. For both processing routes, a careful control is needed to overcome challenges brought, e.g. by the behaviour of the reinforcement particles in the laser beam, by changes in laser absorptivity or by the dissolution of the reinforcing particles in the molten metal, in order to produce MMCs with enhanced usage properties.

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“…Since the development of modern industries has a higher requirement for the performance of engineering materials, the specific strength, hardness, tensile strength, and wear resistance of metals and alloys can be improved significantly by means of the reinforcement of the harder and stiffer ceramic particles [4,5]. Among these particle reinforcements, such as SiC [6], TiC [7], WC [8], and VC [8], TiC is the commonly used reinforcement for the formation of Ni-based metal matrix composites (MMCs) due to the high melting point, high hardness, and excellent wear resistance of TiC. In this situation, the incorporation of TiC particles into Inconel 625 is able to yield the even comprehensive and improved mechanical properties of Ni-based MMCs.…”

Section: Introductionmentioning

confidence: 99%

Laser Metal Deposition Additive Manufacturing of TiC Reinforced Inconel 625 Composites: Influence of the Additive TiC Particle and Its Starting Size

Cao

Lin

2016

Journal of Manufacturing Science and Engineering

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In this study, laser metal deposition (LMD) additive manufacturing was used to deposit the pure Inconel 625 alloy and the TiC/Inconel 625 composites with different starting sizes of TiC particles, respectively. The influence of the additive TiC particle and its original size on the constitutional phases, microstructural features, and mechanical properties of the LMD-processed parts was studied. The incorporation of TiC particles significantly changed the prominent texture of Ni–Cr matrix phase from (200) to (100). The bottom and side parts of each deposited track showed mostly the columnar dendrites, while the cellular dendrites were prevailing in the microstructure of the central zone of the deposited track. As the nano-TiC particles were added, more columnar dendrites were observed in the solidified molten pool. The incorporation of nano-TiC particles induced the formation of the significantly refined columnar dendrites with the secondary dendrite arms developed considerably well. With the micro-TiC particles added, the columnar dendrites were relatively coarsened and highly degenerated, with the secondary dendrite growth being entirely suppressed. The cellular dendrites were obviously refined by the additive TiC particles. When the nano-TiC particles were added to reinforce the Inconel 625, the significantly improved microhardness, tensile property, and wear property were obtained without sacrificing the ductility of the composites.

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Additive layer manufacture of Inconel 625 metal matrix composites, reinforcement material evaluation

Cited by 99 publications

References 18 publications

Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice

Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice

On the Role of Interfacial Reactions, Dissolution and Secondary Precipitation During the Laser Additive Manufacturing of Metal Matrix Composites: A Review

Laser Metal Deposition Additive Manufacturing of TiC Reinforced Inconel 625 Composites: Influence of the Additive TiC Particle and Its Starting Size

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