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Phase and structural changes in nitriding of iron alloyed with titanium

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Surface hardening of Fe−Ti alloys by nitriding is best with a titanium content not exceeding 1.3–1.5%. This produces a case with a high microhardness and good adhesion to the base metal. In alloys with a higher titanium content the amount of nitrogen dissolved in nitriding results in a sharp increase of the volume, embrittling the case and causing cracks.

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Literature Cited

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    A. N. Minkevich, Chemicothermal Treatment of Metals and Alloys [in Russian] Mashinostroenie, Moscow (1965).

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    M. Hansen and K. Anderko, Constitution of Binary Alloys, McGraw-Hill, New York (1958).

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    A. V. Belotskii et al., Izv. Vuzov. Chernaya Metallurgiya, No. 5 (1966).

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    A. V. Belotskii et al., in: Metal Physics, [in Russian], Naukova Dumka, Kiev (1969), No. 28.

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Additional information

Kiev Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 40–42, August, 1971.

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Belotskii, A.V., Dukhota, P.V. & Permyakov, V.G. Phase and structural changes in nitriding of iron alloyed with titanium. Met Sci Heat Treat 13, 659–661 (1971). https://doi.org/10.1007/BF00651785

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  • Nitrogen
  • Iron
  • Titanium
  • Structural Change
  • Base Metal