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Influence of the relaxation properties of the carburized case on the antigalling resistance of constructional steels

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Conclusions

  1. 1.

    The relaxation properties of carburized steel depend upon the structure of the case. Steel with a high (up to 15%) carbide content in the case has the highest capacity for relaxation. With a decrease in the quantity of carbides in the case, the relaxation capacity of the steel drops. Steel with the minimum (less than 1%) quantity of carbides in the case has the lowest relaxation capacity.

  2. 2.

    Chrome-nickel steel with an increased content of dispersed residual austenite (up to 45%) in the carburized case possesses high relaxation properties, while steel with an increased quantity (up to 60%) of residual austenite in the form of coarse inclusions and also steel whose structure consists of martensite and an insignificant (up to 10–12%) quantity of residual austenite possess a low capacity for relaxation.

  3. 3.

    Between the relaxation properties of the steel and its antigalling resistance there exists a correlation. Steel with an increased capacity for relaxation also has high antigalling resistance.

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Literature Cited

  1. 1.

    S. E. Manevskii and I. I. Sokolov, "The antigalling resistance of carburized and carbonitrided steels", Metalloved. Term. Obrab. Met., No. 4, 66–68 (1977).

  2. 2.

    I. S. Kozlovskii, S. E. Manevskii, and I. I. Sokolov, "The influence of residual austenite on the seizing resistance of 20Kh2N4A steel", Metalloved. Term. Obrab. Met., No. 1, 70–73 (1978).

  3. 3.

    S. E. Manevskii et al., "The influence of the quantity of carbides on the seizing resistance of alloy carburized steel", in: Metallurgy and Heat Treatment in Automobile Manufacturing [in Russian], Zavod. Vyssh. Tekh. Uchebn. Zaved. pri Zavode im. Likhacheva, Moscow (1979), pp. 5–12.

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    P. S. Zak, I. I. Sokolov, V. B. Nazarov, and B. P. Shevelev, "A new roller machine for seizing tests", in: Coal and Mining Equipment [in Russian], Nauch.-Issled. Inst. Inf. Tyazh. Énerg. i Transp. Mashinostr., Moscow (1972), pp. 33–39.

  5. 5.

    V. N. Puchkov and Yu. N. Drozdov, "The supporting capacity of heavily loaded contact with a solid lubricant in sliding", Vest. Mashinostr., No. 3, 16–18 (1973).

  6. 6.

    A. P. Semenov, The Seizing of Metals [in Russian], Mashgiz, Moscow (1958).

  7. 7.

    News in the Area of Microhardness Tests. Materials of the Fourth Conference on Microhardness (Gos. Nauch.-Issled. Inst. Mashinoved.) [in Russian], Nauka, Moscow (1974).

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    I. V. Kragel'skii, et al., "The influence of the degree of hardening of materials during rubbing on their resistance to galling", Mashinovedenie, No. 6, 88–95 (1977).

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Additional information

Moscow Institute of Automotive Engineering. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 41–44, October, 1983.

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Kozlovskii, I.S., Manevskii, S.E. Influence of the relaxation properties of the carburized case on the antigalling resistance of constructional steels. Met Sci Heat Treat 25, 759–764 (1983). https://doi.org/10.1007/BF00712253

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Keywords

  • Carbide
  • Austenite
  • Martensite
  • High Capacity
  • Relaxation Property