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Nano-level mechanical and tribological behavior of additively manufactured AlSi10Mg plates

Murugesan Periyakaruppan, Satheeshkumar V., Jeyaprakash N., Prabu G., Yang Che-Hua

Archives of Civil and Mechanical Engineering

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2023

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Vol. 23, no. 1

art. no. e62, 2023

EN

This work focuses on the study of the selective laser melting (SLM) fabrication parameter of AlSi10Mg specimen. SLM parameters such as Power and scanning speed are varied to identify the defect-free samples. In addition, X-ray diffraction (XRD) analysis is carried out on the AM AlSi10Mg specimen to study the presence of phase. The results reveal that the Al matrix possesses (200), (220) and (311) phases whereas the AlSil0Mg powder has (111), (200), (220) and (311) phases. The microstructural characterization based on FESEM, TEM and EBSD analysis is carried out. The cross-section of the molten pool appears as a semi-cylindrical shape in the section that is parallel to the plane of powder deposition. The height, width and depth of the molten pool are measured as 150 ± 10 μm, 450 ± 10 μm and 50 ± 10 μm, respectively. TEM analysis reveals that the Si-precipitate and the eutectic Si element of the AM AlSi10Mg specimen are clearly formed in the AM AlSi10Mg specimen. Si precipitate spread within the grains whereas, the eutectic Si element is present at the grain boundary of the specimen. Then, the nanohardness and nanowear behavior are analyzed. Further, the influence of strain rate on the tensile strength is investigated. These mechanical tests are carried out on the defect-free AM AlSi10Mg specimen to assess its maximum performance. Very rough as well as irregular fracture surfaces are observed in the tensile test AM AlSi10Mg specimen. In addition to it, its magnified image reveals that the specimen fracture in the form of river patterns and contains a lot of micron-sized pores throughout the fracture surfaces.

2

Influence of Nano-Wear of Tool on the Magnitude of Cutting Forces

Lorenc A., Sławińska A., Jóźwiak P.

Mechanics and Mechanical Engineering

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2012

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Vol. 16, nr 1

5--13

EN

The paper presents results of research by means of Scanning Probe Microscopy (SPM), the rake face wear of inserts covered with titanium nitride. The influence of nano-wear on the magnitude of cutting force has been described.

3

The work of friction during nanowear process

Ekwińska M.

Elektronika : konstrukcje, technologie, zastosowania

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2004

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Vol. 45, nr 8-9

206-209

EN

The work of friction estimated by the measurement of friction force along the sliding distance was experimentally found during nanowear process using Atomic Force Microscopy (AFM). The comparison of the results obtained for various weared materials is discussed.

PL

Przy wykorzystaniu mikroskopu sił atomowych (AFM) wykonano proces nanozużycia. Zarejestrowano siłę tarcia dla pojedynczej linii skanu i określono pracę tej siły. W niniejszym artykule zaprezentowano porównanie wyników otrzymanych dla różnych materiałów.