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The Role of Texture in the Processes of Aging and Delayed Fracture of Maraging Steel

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Abstract

Processes of aging of maraging steel 03N18K3M3T from commercial heats are investigated. Dilatometric, x-ray diffraction, and fractographic studies and tests for corrosion strength and delayed fracture (DF) are described. It is shown that after quenching from 820°C and aging at 400°C a DF crack propagates in the studied steel over grain boundaries at a high speed, which causes brittle fracture. The corrosion rate of the steel after such a treatment is also high. X-ray diffraction analysis has shown the presence of a strong and virtually single-component texture in martensite, which is preserved after forging, prior high-temperature quenching, and base quenching from 820°C.

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Authors and Affiliations

  1. Ural State Technical University (UPI),, Ekaterinburg,, Russia

    V. V. Berezovskaya, S. V. Grachev, F. V. Mineev, D. V. Titorova & V. B. Shirikhin

  2. VIZ-Stal' Company,, Ekaterinburg,, Russia

    V. V. Berezovskaya, S. V. Grachev, F. V. Mineev, D. V. Titorova & V. B. Shirikhin

  3. Russian Academy of Sciences,, Physicotechnical Institute of the Ural Branch of the, Izhevsk,, Russia

    V. V. Berezovskaya, S. V. Grachev, F. V. Mineev, D. V. Titorova & V. B. Shirikhin

Authors
  1. V. V. Berezovskaya
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  2. S. V. Grachev
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  3. F. V. Mineev
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  4. D. V. Titorova
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  5. V. B. Shirikhin
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Berezovskaya, V.V., Grachev, S.V., Mineev, F.V. et al. The Role of Texture in the Processes of Aging and Delayed Fracture of Maraging Steel. Metal Science and Heat Treatment 43, 65–68 (2001). https://doi.org/10.1023/A:1010430524886

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  • DOI: https://doi.org/10.1023/A:1010430524886

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