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Structure and properties of some low-carbon alloyed weldable steels

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Conclusions

  1. 1.

    Low-carbon alloyed steels with a martensite structure differ from steels with a bainite structure (if they are compared at close values of σ0.2) by a considerably higher impact strength at test temperatures from +20 to −60°C. This is explained by a coarser bainite structure differentiation and formation of austenite-martensite islets during cooling from austenization temperatures in bainite steels.

  2. 2.

    Of the investigated steels the 07Kh3GNM martensite class steel has the better properties; it requires no hardening in liquid media and has a packet structure of martensite in cross sections to 80 mm after cooling or austenization and cooling in air.

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Authors
  1. R. I. Éntin
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  2. M. N. Pankova
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  3. S. V. Uspenskaya
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  4. L. M. Kleiner
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  5. L. G. Orlov
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Additional information

I. P. Bardin Central Scientific-Research Institute of Ferrous Metallurgy. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 31–33, June, 1991.

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Éntin, R.I., Pankova, M.N., Uspenskaya, S.V. et al. Structure and properties of some low-carbon alloyed weldable steels. Met Sci Heat Treat 33, 463–466 (1991). https://doi.org/10.1007/BF00775382

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  • DOI: https://doi.org/10.1007/BF00775382

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