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Intergranular fracture in forgings of steel 09Kh15N8Yu

  • Stainless Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Intergranular fracture of parts of the rotor of separators made of steel 09Kh15N8Yu occurs in forgings contaminated with A1N of grade 4-5 and TiN of grade 1-2. Forgings with a normal fracture contain only TiN of grade 2-3.

  2. 2.

    The reason for intergranular fracture in forgings of steel 09Kh15N8Yu is overheating of the ingots to 1230–1250° (furnace temperature) during heating for forging and extrusion, accompanied by an increase of the original austenite grain size to grade −1, 0, and 1 and precipitation of dispersed particles of A1N and TiN in austenite grain boundaries.

  3. 3.

    To eliminate rejects for intergranular fracture we recommend a new procedure for heating ingots for forging and extrusion — to 1150±10° (furnace temperature) for forging and to 1180° for extrusion, with holding for 3 and 2 h, respectively.

  4. 4.

    The susceptibility of steel 09Kh15N8Yu to overheating depends to a considerable extent on the deoxidation procedure during melting and pouring, and thus on the number of nonmetallic inclusions of A1N and TiN.

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Literature cited

  1. M. P. Braun, Nature of Intergranular Fracture of Overheated Steel [in Russian], Izd. Akad. Nauk Ukr. SSR, Kiev (1954).

    Google Scholar 

  2. V. D. Sadovskii et al., "Intergranular fracture in structural steels," Stal', No. 6, 545 (1955).

    Google Scholar 

  3. M. A. Studnits and O. T. Malyuchkov, "Autoradiographic analysis of metals and alloys by means of radioactive isotopes," Metalloved. Term. Obrab. Met., No. 6, 15 (1955).

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  4. A. V. Smirnova, I. Yu. Ul'yanina, and M. T. Vinograd, "Aluminum nitrides in carbon steel," Metalloved. Term. Obrab. Met., No. 2, 57 (1970).

    Google Scholar 

  5. Ya. E. Gol'dshtein and T. L. Mushtakova, "Intergranular fracture of steel," Metalloved. Term. Obrab. Met., No. 5, 70 (1978).

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Authors
  1. A. P. Akshentseva
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  2. A. L. Belinkii
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  3. G. A. Zheltova
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Additional information

Scientific-Research and Design Institute of Chemical Machine Construction. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 34–36, June, 1980.

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Akshentseva, A.P., Belinkii, A.L. & Zheltova, G.A. Intergranular fracture in forgings of steel 09Kh15N8Yu. Met Sci Heat Treat 22, 422–425 (1980). https://doi.org/10.1007/BF00693647

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  • DOI: https://doi.org/10.1007/BF00693647

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