Abstract
The influence of the residence time of 30XΓCA and P18 steel and also VT20 titanium alloy in conditions of polymorphous austenitic and bainitic pretransformation and transformation on their mechanical properties is investigated. The results show that phase transformations permit regulation of alloy structure and properties over a broad range (from properties typical of the quenched state to those of tempered metal). By working at the boundary of polymorphous transformation, the density of the defect structure may be equalized, and the mechanical properties of the alloys may be optimized. Acoustic emission may be used to determine the stage of phase transformation. On that basis, heat treatment that permits the most effective use of the phase transformation is developed.
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Original Russian Text © A.V. Frolov, 2013, published in “Izvestiya VUZ. Chernaya Metallurgiya,” 2013, No. 10, pp. 59–64.
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Frolov, A.V. Optimizing the mechanical properties of steel and alloys by adjustment of the defect nanostructure. Steel Transl. 43, 635–639 (2013). https://doi.org/10.3103/S0967091213100069
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DOI: https://doi.org/10.3103/S0967091213100069