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This article is cited in 7 scientific papers (total in 7 papers)
Influence of the temperature-induced martensitic-austenitic transformation on the strength properties of high-alloy steels under dynamic loading
A. S. Savinykhab, G. V. Garkushinab, S. V. Razorenovab, S. Wolfc, L. Krügerc a Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, 142432, Russia
b National Research Tomsk State University, Tomsk, 634050, Russia
c Freiberg University of Mining and Technology, Freiberg, 09599, Germany
Abstract:
The dynamic elastic limit and spall strength of high-alloy chromium-manganese-nickel steel in the martensitic-austenitic transformation induced by a change in the temperature from -120 to 200$^\circ$C is measured by recording the complete wave profiles with a VISAR laser interferometer and subsequently analyzing them. The spall strength of the investigated steel in the martensitic phase is found to be 25–30% higher than the strength of steel in the austenitic phase. In this case, the strength decreases in a stepwise manner in a narrow temperature range approximately from -50 to 20$^\circ$C, where, apparently, basic changes in the internal structure of steel occur due to the martensitic-austenitic transformation. The measured values of the dynamic elastic limit of high-alloy steel have a sufficiently large scatter and hardly decrease with increasing temperature without any features associated with the martensitic-austenitic transformation of the structure.
Keywords:
high-alloy steel, martensitic-austenitic transformation, shock-wave loading, spall strength, free surface velocity profile.
Received: 03.06.2014
Citation:
A. S. Savinykh, G. V. Garkushin, S. V. Razorenov, S. Wolf, L. Krüger, “Influence of the temperature-induced martensitic-austenitic transformation on the strength properties of high-alloy steels under dynamic loading”, Fizika Goreniya i Vzryva, 51:1 (2015), 143–149; Combustion, Explosion and Shock Waves, 51:1 (2015), 124–129
Linking options:
https://www.mathnet.ru/eng/fgv208 https://www.mathnet.ru/eng/fgv/v51/i1/p143
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