An investigation of wear behaviors of different Monel alloys produced by powder metallurgy

Esgin, U.; Özyürek, Dursun; Kaya, Hasan

doi:10.1063/1.4945963

Cited by 9 publications

(10 citation statements)

References 12 publications

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“…This metric permits quantitative comparisons of disparate materials and thermal cycles, as shown in Fig. 4c, where we see that the thermal budget for the designed Ni alloy (black) is reduced by at least two orders of magnitude as compared to its commercial Nibased powder alloy counterparts, as well as elemental Ni and Cu powders 13,[43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61] . What is more, for most of these commercial Ni-base alloys, densification is too slow in the solid state (solid data points), so some degree of melting is required for densification; the open data points show that high density typically requires melting in those alloys.…”

Section: Experimental Validation Of the Accelerated Sintering Designmentioning

confidence: 99%

Multicomponent alloys designed to sinter

Naunheim,

Schuh

2024

Preprint

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Powder sintering is a low-energy, net-shape processing route for many new products in the additive manufacturing space. We advance the viewpoint that for future manufacturing, alloys should be designed from materials science principles to sinter quickly at lower temperatures and with controlled final microstructures. Specifically, we illustrate the computational design of a multinary Ni-base alloy, whose chemistry permits a low-temperature solid-state sintering scheme without any pressure- or field-assistance, as well as heat-treatability after sintering. The strategy is based on sequential phase evolutions designed to occur during sintering. The reactions involve rapid reorganization of matter to full density in cycles up to just 1200°C, while conventional Ni alloys sintered in the solid-state require about ten times longer, or more than 250°C degrees higher temperature. Our approach yields an alloy that benefits from precipitation hardening, has an increased strength ~ 50% higher than solid-state processed commercial Ni alloys, and yet exhibits extensive plasticity beyond 35% uniaxial strain. The results point to a generalizable design scheme for many other alloys designed for solid-state powder processing that can enable greater value from additive manufacturing.

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Section: Experimental Validation Of the Accelerated Sintering Designmentioning

confidence: 99%

Multicomponent alloys designed to sinter

Naunheim,

Schuh

2024

Preprint

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“…It can be clearly observed that the fluctuation intensity of Ni-30Cu-2.5Si alloy is the most intensive of all the four alloys, which is characterised by maximum range of colour variation. Specifically, term λ is used to characterise the fluctuation intensity of the worn surface outline (Figure 8(f)) in y-z plane (x = 640 μm), and is defined by Equations (5)(6) in this case:…”

Section: Wear Behaviourmentioning

confidence: 99%

“…Dey et al [5] studied the Ni-Cu alloy matrix reinforced with a spherical precipitation γ ' (Ni 3 (Al, X)) which possesses high room-strength and excellent corrosion resistance, where X can be Ti, Mn or Cu. Esgin et al [6] demonstrated that the incorporation of higher sulphur and manganese contents can lead to the improvement of the machinability, wear and corrosion resistance by providing second-phase particles. Also, surface modification technologies have been used to enhance the properties of Ni-Cu alloy.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the mechanical properties and frictional performance of Ni–Cu–Si alloy

Wang

Jie

Dong

et al. 2020

Materials Science and Technology

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The microstructure evolution, mechanical properties and dry sliding behaviour of Ni–30Cu– xSi alloy have been investigated systematically. As the volume fraction of microscale second-phase particles and nanoscale precipitates increases, the hardness, yield strength and ultimate tensile strength of alloy are improved significantly but elongation is reduced. Through confocal laser scanning microscope and atomic force microscope, it is suggested that the wear mode changes from the mixture of abrasive and adhesive wear to single abrasive wear. Owing to the existence of netlike microscale second-phase particles which are more likely to split the matrix, the Ni–30Cu–5.5Si alloy exhibits an abnormal higher wear rate even with the highest hardness. The netlike structure which deteriorates the friction performance should be avoided in wear-resistant materials.

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“…Nickel alloys are widely used in the automotive and chemical or marine industries. A representative of such alloys is Monel ® Alloy 400, but its low hardness and wear resistance restrict the fields in which it can be applied [1,2]. Although it has good corrosion resistance, mechanical properties are undoubtedly important.…”

Section: Introductionmentioning

confidence: 99%

Laser Processing of Diffusion Boronized Layer Produced on Monel® Alloy 400—Microstructure, Microhardness, Corrosion and Wear Resistance Tests

et al. 2021

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The paper presents the results of studies of microstructure, mechanical and physicochemical properties of surface layers produced by laser modification of the diffusion boron layer on Monel® Alloy 400. The diffusion boron layers were produced at 950 °C for 6 h. The gas-contact method was used in an open retort furnace. The process was carried out in a powder mixture containing B4C carbide as a boron source. The next stage was the modification of the boron layer with a diode laser beam of a nominal power of 3 kW. A constant power of 1400 W of the laser beam was used. The scanning speed was variable (successively 5 m/min, 25 m/min, 50 m/min). In order to determine the best parameters, single tracks were created, after which multiple tracks were prepared using previously selected parameters. It was found that both the diffusion borided layer and the laser modified layer had better properties than the substrate material. Both these processes contributed to an increase in corrosion resistance, hardness and wear resistance. It was also found that laser modification caused a slight deterioration of the properties in comparison with the diffusion borided layer. However, the laser modification process resulted in the production of a much thicker layer.

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An investigation of wear behaviors of different Monel alloys produced by powder metallurgy

Cited by 9 publications

References 12 publications

Multicomponent alloys designed to sinter

Multicomponent alloys designed to sinter

Investigation on the mechanical properties and frictional performance of Ni–Cu–Si alloy

Laser Processing of Diffusion Boronized Layer Produced on Monel® Alloy 400—Microstructure, Microhardness, Corrosion and Wear Resistance Tests

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