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

Lorusso, Massimo

doi:10.5772/intechopen.85167

Cited by 6 publications

(4 citation statements)

References 28 publications

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“…This difference can be attributed to grain boundary lubrication and higher hardness for finer grains. The refined grains in SN samples showed a higher wear resistance and lowered COF [76,77].…”

Section: Cof Variations Versus Sliding Distancementioning

confidence: 95%

Microstructure-induced anisotropic tribological properties of Sc-Zr modified Al–Mg alloy (Scalmalloy®) produced via laser powder bed fusion process

Abdi,

Salehi,

Fatemi

et al. 2023

Int J Adv Manuf Technol

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In this study, the correlation between the microstructure and tribological performance of Sc and Zr-modified Al–Mg alloy (Scalmalloy®) samples produced via laser powder bed fusion process was evaluated via a dry sliding Pin-on-Disc wear test under different planes, directions, and various normal applied loads. The results revealed a remarkable dependency of wear properties on the as-built microstructure so that different behaviors were observed along the scanning and building planes. The microstructural examination indicated the presence of bi-modal grains and finely shaped equiaxed grains observed in the building and scanning planes, respectively. Increasing the applied loads from 20 to 40 N led to a significant increase in the coefficient of friction (COF) while increasing the load from 40 to 60 N, slightly decreasing the COF for the studied samples. No dependency was found between the COF and the corresponding microstructure at the highest applied load. The anisotropic wear resistance and COF values were predominant at the lowest applied load. Due to tailored as-built microstructural features and different microhardness values, lower wear rates were noticed along the scanning plane for all applied loads. Under the 20 N applied load, however, the worn surface of the scanning plane showed a clearer and smoother surface compared to the building plane surfaces. Ultra-fine equiaxed grains along the scanning plane and columnar grains along the building plane were determined as the main factors creating anisotropic tribological behavior. The outcomes of this study can pave the way toward producing more wear-resistant surfaces and developing components for critical wear applications in as-built conditions with no need for expensive and time-consuming surface treatments.

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Section: Cof Variations Versus Sliding Distancementioning

confidence: 95%

Microstructure-induced anisotropic tribological properties of Sc-Zr modified Al–Mg alloy (Scalmalloy®) produced via laser powder bed fusion process

Abdi,

Salehi,

Fatemi

et al. 2023

Int J Adv Manuf Technol

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“…Larusso [29] concluded that the parts manufactured through laser powder bed fusion present higher wear resistance and a smaller coefficient of friction, under the same dry condition and boundary lubrication, in comparison with parts manufactured through conventional technologies. The main root of this cause is the fine size of the grains and the high hardness.…”

Section: Powder Bed Fusionmentioning

confidence: 99%

A review on tribological behaviour of mechanical components obtained by additive manufacturing

Macovei

Paleu²

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Technology based on additive manufacturing is rapidly emerging and is being used in a wide range of industries. Meeting the precision and accuracy (P&A) requirements of 3D printed parts (shape and size tolerances, surface quality, etc.) is increasingly becoming an issue. This paper presents a critical analysis of the tribological problems encountered in 3D printing for parts manufactured through different types of technologies, such as powder bed fusion, binder jetting, direct energy deposition, material jetting, fused filament fabrication, vat photopolymerization, sheet lamination, and ultrasonic consolidation. For all these additive manufacturing technologies, this paper will present a brief description, classification, examples of materials used, and tribological problems of the obtained machine parts.

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“…The tribological properties, particularly wear resistance, are crucial for plastic injection moulds to guarantee efficacy and safety [156], especially when the injected material is reinforced with hard particles, such as glass fibre reinforcements, or when additives like titanium oxide are used [31,52]. The tribological properties are dependent on the microstructure (type of phase(s), shape, and size), porosity, and surface roughness [157].…”

Section: Tribological Propertiesmentioning

confidence: 99%

“…The tribological properties are dependent on the microstructure (type of phase(s), shape, and size), porosity, and surface roughness [157]. Some studies show that the wear resistance of materials processed by LPBF improves when compared to traditional manufacturing processes due to the refined microstructure achieved by the process [156][157][158].…”

Section: Tribological Propertiesmentioning

confidence: 99%

Laser powder bed fusion of the steels used in the plastic injection mould industry: a review of the influence of processing parameters on the final properties

Cunha

Marques

Silva

et al. 2022

Int J Adv Manuf Technol

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This review provides a critical overview of the influence of the Laser Powder Bed Fusion (LPBF) processing parameters on the final properties of the three steels used in the plastic injection mould industry (420 stainless steel, H13, and P20 steels). The main objective is to provide an engineering overview concerning the response of the parts made from the materials produced by this technique. A comprehensive summary of LPBF processing parameters and their influence on the physical, mechanical, tribological, corrosion, and thermal properties of the LPBFed parts is presented and discussed. An analysis of the suitability of these steels for the production of components for the plastic injection mould industry is also presented. This review shows that, despite the increase research about these steels over recent years, there are still some shortcomings and issues that require further investigation, such as the behaviour of LPBFed parts in-service conditions, their thermal behaviour, and the influence of the processing parameters and their surroundings on the final properties of the parts.

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

Cited by 6 publications

References 28 publications

Microstructure-induced anisotropic tribological properties of Sc-Zr modified Al–Mg alloy (Scalmalloy®) produced via laser powder bed fusion process

Microstructure-induced anisotropic tribological properties of Sc-Zr modified Al–Mg alloy (Scalmalloy®) produced via laser powder bed fusion process

A review on tribological behaviour of mechanical components obtained by additive manufacturing

Laser powder bed fusion of the steels used in the plastic injection mould industry: a review of the influence of processing parameters on the final properties

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