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Effect of austenitizing temperature on the properties of steel Kh5N12M3TYu

  • Maraging Steels
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    In maraging steel of the Kh5N12M3TYu type grain growth begins during heating from 950 to 1000° Preliminary high-temperature treatment affects only the grain size.

  2. 2.

    The impact strength of the steel decreases on cooling from temperatures at which grain growth occurs, i.e., as in low-carbon low-alloy steels.

  3. 3.

    For steel of the Kh5N12M3TYu type no relationship was estalished between the coercive force and the grain size, although the coercive force can be used for qualitative determination of the grain size: it is smaller in coarse-grained than fine-grained steel, particularly for incomplete hardening and aging at 475°.

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Literature cited

  1. Ya. M. Potak, V. V. Sachkov, et al., "Some characteristics of phase transformations and properties of high-strength maraging steel VKS-210 (000N18K9M5T, EP637)," in: Increasing the Structural Strength of Steels and Alloys [in Russian], No. 2, MDNTP (1970), pp. 3–14.

  2. G. F. Libsh and H. P. Konrad, "Structure and coercivity," in: Structure of Metals and Alloys, M. L. Bernshtein (editor) [Russian translation], Metallurgizdat, Moscow (1957), pp. 215–239.

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  3. G. B. Newkirk, "General theory, mechanism, and kinetics," in: Aging of Alloys, M. I. Zakharova (editor) [in Russian], Metallurgizdat, Moscow (1962), pp. 12–143.

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  4. V. D. Sadovskii, G. N. Bogacheva, and V. M. Umova, "Recrystallization of alloys with aging martensite," Metal. i Term. Obrabotka Metal., No. 4, 10–14 (1969).

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Authors
  1. K. N. Martsenko
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  2. A. A. Astaf'ev
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  3. N. I. Burova
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Additional information

Central Scientific-Research Institute of Heavy Machine Construction. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 27–29, June, 1973.

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Martsenko, K.N., Astaf'ev, A.A. & Burova, N.I. Effect of austenitizing temperature on the properties of steel Kh5N12M3TYu. Met Sci Heat Treat 15, 475–477 (1973). https://doi.org/10.1007/BF01153265

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  • DOI: https://doi.org/10.1007/BF01153265

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