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Defects and long-term strength of materials with low deformability

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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    To calculate the long-term strength of parts used in power plants that are subject to brittle fracture under creep conditions it is necessary to use the proposed system of kinetic equations that reflect the effect of invariants of the stress tensor on the micromechanism of failure and the orientation of defectiveness.

  2. 2.

    This system of equations can be most effectively used in the case of mixed fracture under conditions of creep where it is necessary to extrapolate the test results to operating times of more than 100,000 h and also for fluctuating force and temperature fields leading to a change in the mechanism of microfracture.

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Authors
  1. Yu. K. Petrenya
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  2. A. A. Chizhik
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 22–24, December, 1980

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Petrenya, Y.K., Chizhik, A.A. Defects and long-term strength of materials with low deformability. Met Sci Heat Treat 22, 877–879 (1980). https://doi.org/10.1007/BF00779395

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