Conclusion
The volumetric method was used to study the formation of microcracks during plastic deformation of annealed and normalized steel 70. It was found that the number of microcracks formed increases with the coarseness of the original structure. Defects occurring with substantial plastic deformation of annealed steel with a structure of coarse lamellar pearlite are healed by brief heating to temperatures above 1100°.
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Additional information
Institute of Metal Physics, Academy of Sciences of the USSR. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 21–23, January, 1971.
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Gridnev, V.N., Gavrilyuk, V.G. & Meshkov, Y.Y. Changes in the density of steel during plastic deformation and annealing. Met Sci Heat Treat 13, 20–22 (1971). https://doi.org/10.1007/BF00663772
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DOI: https://doi.org/10.1007/BF00663772