Effect of post-heat treatment on the thermophysical and compressive mechanical properties of Cu-Ni-Sn alloy manufactured by selective laser melting

Kim, Young-Kyun; Park, Sunhong; Lee, Kee‐Ahn

doi:10.1016/j.matchar.2020.110194

Cited by 25 publications

(2 citation statements)

References 24 publications

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“…Hauschwitz et al [58] suggest that optimizing the rolling torque, polishing speed, and reducing the polishing depth can improve the process's efficiency and quality while lowering subsurface damage [59,60]. Moreover, some authors have been overcoming these issues thanks to the brisk development of the selective laser melting (SLM) process [61][62][63] allied to a post-machining process.…”

Section: Copper-beryllium Alloys (Ampco ® )mentioning

confidence: 99%

A Concise Review on Materials for Injection Moulds and Their Conventional and Non-Conventional Machining Processes

Pedroso,

Sebbe,

Silva

et al. 2024

Machines

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Injection moulds are crucial to produce plastic and lightweight metal components. One primary associated challenge is that these may suffer from different types of failures, such as wear and/or cracking, due to the extreme temperatures (T), thermal cycles, and pressures involved in the production process. According to the intended geometry and respective needs, mould manufacturing can be performed with conventional or non-conventional processes. This work focuses on three foremost alloys: AMPCO® (CuBe alloy), INVAR-36® (Fe-Ni alloys, Fe-Ni36), and heat-treated (HT) steels. An insight into the manufacturing processes’ limitations of these kinds of materials will be made, and solutions for more effective machining will be presented by reviewing other published works from the last decade. The main objective is to provide a concise and comprehensive review of the most recent investigations of these alloys’ manufacturing processes and present the machinability challenges from other authors, discovering the prospects for future work and contributing to the endeavours of the injection mould industry. This review highlighted the imperative for more extensive research and development in targeted domains.

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Section: Copper-beryllium Alloys (Ampco ® )mentioning

confidence: 99%

A Concise Review on Materials for Injection Moulds and Their Conventional and Non-Conventional Machining Processes

Pedroso,

Sebbe,

Silva

et al. 2024

Machines

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show abstract

“…Luo et al found that the addition of 0.5 Si into Cu-9Ni-2.5Sn-1.5Al could increase the mechanical properties of the as-extruded samples, with a tensile strength of 861 MPa and elongation of 18% [7]. Therefore, Cu-Ni-Sn alloys are frequently used as bearings, bushings, and corrosion-resistant parts in aerospace, marine, oil exploration, and transmission engineering [9,10].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Hot Deformation Behavior of a CuNiSn Alloy

Jiang

Wang

et al. 2021

Processes

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The hot deformation behavior of Cu-20.0Ni-5.0Sn-0.25Zn-0.22Mn was investigated using a Gleeble-3500 thermal simulator with a temperature range from 720 °C to 880 °C and a strain rate range from 0.001 s−1 to 1 s−1. The results show that the flow stress increased with the increase of the strain rate and the decrease of the temperature. The constitutive equation of the alloy was established based on the peak flow stress. Figures of the power dissipation efficiency and flow instability with the variable of the true strain from 0.2 to 0.8 displayed the dynamic change of power dissipation efficiency and the instability area. The domain of 730–770 °C and 0.001–0.01 s−1 possessed a power dissipation efficiency over 40% throughout the whole deformation. The flow instability always appeared at a high strain rate from 0.1 s−1 to 1 s−1 during the whole deformation process. The nucleation site of the dynamic recrystallization generally appeared along the grain boundaries, indicating the discontinuous dynamic recrystallization mechanism. The appropriate conditions for deformation with a true strain of 0.9 is in a safe domain (820–860 °C with a strain rate of 0.001–0.01 s−1). There were four kinds of variation tendencies of the power dissipation efficiency with the increase of the true strain under various conditions, suggesting a changing situation for the main softening mechanisms.

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High‐Strength Wear‐Resistant Cu/Tungsten Carbide/Diamond Composites Fabricated by Powder Metallurgy

Zhang,

Lei,

Gao

et al. 2024

Adv Eng Mater

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Copper‐based diamond composites are widely used for thermal management and wear‐resistant materials. In this work, Cu/diamond, Cu/WC/diamond, and Cu‐0.92Cr/WC/diamond composites were fabricated by high‐energy ball milling and rapid hot‐pressing sintering. Physical characteristics, compressive strength, and tribological properties of the studied composites were investigated. The compressive strength of Cu/7wt.%WC/diamond composites was 102% higher than the Cu/diamond composites, reaching 415 MPa. Compression fractures extended from the interface due to compression cracks, consistent with the compression curves from molecular dynamics simulations. The crack propagated from the interface during the compression experiment, which was consistent with the result of molecular dynamics simulation. The Cu/7wt.%WC/diamond composites exhibited a wear rate of 0.6×10‐6 mm3/(N·m) and a friction coefficient of 0.37. at 50 N. The addition of WC and diamond improves the compressive strength and wear resistant. These findings were helpful in the development of copper composites with high compression strength and wear resistant.This article is protected by copyright. All rights reserved.

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Effect of post-heat treatment on the thermophysical and compressive mechanical properties of Cu-Ni-Sn alloy manufactured by selective laser melting

Cited by 25 publications

References 24 publications

A Concise Review on Materials for Injection Moulds and Their Conventional and Non-Conventional Machining Processes

A Concise Review on Materials for Injection Moulds and Their Conventional and Non-Conventional Machining Processes

Microstructure Evolution and Hot Deformation Behavior of a CuNiSn Alloy

High‐Strength Wear‐Resistant Cu/Tungsten Carbide/Diamond Composites Fabricated by Powder Metallurgy

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