Conclusions
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1.
We developed a method of investigating structural changes occurring in technically pure iron subjected to ultrasonic high-temperature heating.
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2.
We have shown that ultrasonic heating of iron induces local recrystallization, the orientation of grain bound-aries in the direction of maximum tangential stresses, and also a double network of grain boundaries. This latter is of great importance for the investigation of the inherited structure of metals.
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Literature cited
W. Mason and R. Wick, Mechanical Impedance Transformer. Amer. pat. No. 2573168 (1950).
Yu. F. Balalaev, MiTOM, No. 4 (1960).
Yu. F. Balalaev, Zavodskaya laboratoriya, No. 5 (1960).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 48–49, January, 1964
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Balalaev, Y.F. Effect of ultrasonic high-temperature heating on the structure of technically pure iron. Met Sci Heat Treat 6, 41–43 (1964). https://doi.org/10.1007/BF00661972
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DOI: https://doi.org/10.1007/BF00661972