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Effect of Heat Treatment on the Microstructure and Mechanical Properties of the EP648 Alloy Obtained by Selective Laser Melting

  • RELIABILITY, STRENGTH, AND WEAR RESISTANCE OF MACHINES AND STRUCTURES
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Abstract—

A comprehensive study of the EP648 Ni-based superalloy obtained by selective laser melting followed by high-temperature annealing has been carried out. The macro- and microhardness have been studied, and the microstructure has been analyzed, while tests for brittle fracture resistance were carried out. The quantitative and qualitative analyses indicate possible structural deviations affecting the properties of products.

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ACKNOWLEDGMENTS

The authors are grateful to the team of  Center AT (Voronezh, Russia) for their professional assistance with the sample preparation.

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Authors and Affiliations

  1. Yuri Gagarin State Technical University of Saratov, Saratov, Russia

    D. Yu. Finogeev & O. P. Reshetnikova

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  1. D. Yu. Finogeev
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  2. O. P. Reshetnikova
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Correspondence to D. Yu. Finogeev.

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Translated by N. Saetova

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Finogeev, D.Y., Reshetnikova, O.P. Effect of Heat Treatment on the Microstructure and Mechanical Properties of the EP648 Alloy Obtained by Selective Laser Melting. J. Mach. Manuf. Reliab. 52, 46–53 (2023). https://doi.org/10.3103/S1052618823010041

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  • DOI: https://doi.org/10.3103/S1052618823010041

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