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Cold Strength and Failure of 3D-Printed Metals

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Abstract

The cold strength and low-temperature failure of 3D-printed 08Г2С and 07Х25Н13 steels are considered. Specifically, the metals are produced by electric arc surfacing. With decrease in temperature, the impact strength of the steels falls. The impact strength is higher for samples cut along the surfacing direction than for those cut in the transverse direction. The brittle component predominates in the fracture of 08Г2С steel below −40°C. By contrast, the ductile component is seen in the fracture of 07Х25Н13 steel at any temperature. A relationship is established between the fractal dimensionality of the fracture surface and the quantity of ductile component.

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Funding

Financial support was provided by the Russian President for work on assessing the cold strength and failure of metals produced by 3D printing so as to ensure safe operation of equipment in the Arctic and the Far North (grant MK-370.2021.4).

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Authors and Affiliations

  1. Alekseev Nizhny Novgorod State Technical University, Nizhny Novgorod, Russia

    Yu. G. Kabaldin, M. S. Anosov, D. A. Shatagin & P. V. Kolchin

Authors
  1. Yu. G. Kabaldin
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  2. M. S. Anosov
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  3. D. A. Shatagin
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  4. P. V. Kolchin
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Corresponding author

Correspondence to Yu. G. Kabaldin.

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Translated by B. Gilbert

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Kabaldin, Y.G., Anosov, M.S., Shatagin, D.A. et al. Cold Strength and Failure of 3D-Printed Metals. Russ. Engin. Res. 41, 1027–1030 (2021). https://doi.org/10.3103/S1068798X21110113

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  • DOI: https://doi.org/10.3103/S1068798X21110113

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