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Investigation of thermal fatigue failure of cast iron by the internal friction method

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Conclusions

  1. 1.

    In stage I of thermal fatigue failure lattice defects accumulate in the metallic matrix of cast iron. Impurity atoms pass into solution and collect at dislocations, leading to hardening as thermal cycling is continued.

  2. 2.

    Holding after thermal cycling leads to partial restoration of the condition and the properties, the extent and rate of which depend on the number of thermal cycles, i.e., the dislocation density and the holding time. The change in the kinetics of recovery when cracks occur is explained by the lower dislocation density in this case.

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Literature cited

  1. 1.

    Yu. F. Balandin, Thermal Fatigue of Metals in Marine Power Plants [in Russian], Sudostroenie, Leningrad (1957), pp. 193–246.

  2. 2.

    V. M. Vozdvizhenskii, A. A. Zhukov, and V. V. Chistyakov, "Heat resistance of cast iron for molds," Izv. VUZ, Chernaya Metal., No. 7, 146–150 (1967).

  3. 3.

    M. A. Krishtal, Yu. V. Piguzov, and S. A. Golovin, Internal Friction in Metals and Alloys [in Russian], Metallurgiya, Moscow (1964), pp. 151–187.

  4. 4.

    S. A. Golovin, "Dislocation arrays and damping of vibrations in metals," in: Energy Scattering during Vibration of Elastic Systems [in Russian], Naukova Dumka, Kiev (1968), pp. 326–331.

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    M. A. Krishtal and B. M. Drapkin, "Apparatus for simultaneous determination of modulus of elasticity, shear modulus, and damping decrement," Zavod. Lab.,31, No. 11, 1391–1393 (1965).

  6. 6.

    B. M. Drapkin and A. A. Zhukov, "Elastic and relaxation characteristics of gray cast iron during thermal cycling," Metal. i Term. Obrabotka Metal., No. 11, 52–53 (1971).

  7. 7.

    B. M. Drapkin, A. A. Zhukov, and Yu. V. Piguzov, "Rules for measuring the elastic characteristics of cast iron during thermal fatigue failure," Izv. VUZ, Chernaya Metal., No. 10, 135–137 (1973).

  8. 8.

    V. S. Ivanova, Fatigue Failure of Metals [in Russian], Metallurgizdat, Moscow (1963), pp. 141–146.

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Additional information

Rybiskii Aviation Technology Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 72–73, April, 1975.

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Zhukov, A.A., Drapkin, B.M. Investigation of thermal fatigue failure of cast iron by the internal friction method. Met Sci Heat Treat 17, 354–356 (1975). https://doi.org/10.1007/BF00663407

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Keywords

  • Iron
  • Fatigue
  • Thermal Cycling
  • Dislocation Density
  • Cast Iron