Anomaly in the dynamic strength of austenitic stainless steel 12Cr19Ni10Ti under shock wave loading
- 9 Downloads
Measurement results for the shock wave compression profiles of 12Cr19Ni10Ti steel and its dynamic strength in the strain rate range 105–106 s−1 are presented. The protracted viscous character of the spall fracture is revealed. With the previously obtained data taken into account, the measurement results are described by a polynomial relation, which can be used to construct the fracture kinetics. On the lower boundary of the range, the resistance to spall fracture is close to the value of the true strength of the material under standard low-rate strain conditions; on the upper boundary, the spall strength is more than twice greater than this quantity. An increase in the temperature results in a decrease in both the dynamic limit of elasticity and the spall fracture strength of steel. The most interesting result is the anomaly in the dependence of the spall fracture strength on the duration of the shock wave compression pulse, which is related to the formation of deformation martensite near the growing discontinuities.
Keywordsshock waves dynamic strength viscosity stainless steel deformation martensite
Unable to display preview. Download preview PDF.
- 1.N. F. Morozov and Yu. V. Petrov, Dynamics of Fracture (Izdat. SPbGU, St. Petersburg, 1997; Springer, Berlin-Heidelberg-New York, 2000).Google Scholar
- 2.Ya. B. Zel’dovich and Yu. P. Raizer, Physics of Shock Waves and High Temperature Hydrodynamical Phenomena (Nauka, Moscow, 1966) [in Russian].Google Scholar
- 3.G. I. Kanel, S. V. Razorenov, A. V. Utkin, and V. E. Fortov, Shock Wave Phenomena in Condensed Media (Yanus-K, Moscow, 1996) [in Russian].Google Scholar
- 4.G. I. Kanel, “Resistance of Metals to Spalling Fracture,” Fiz. Goreniya i Vzryva, No. 3, 77–84 (1982) [Comb. Expl. ShockWaves (Engl. Transl.) 18 (3), 329–335 (1982)].Google Scholar
- 5.E. Zaretsky and M. Kaluzhny, “Fracture Threshold and Shock Induced Strengthening of Stainless Steel,” in AIP Conf. Proc. “Shock Compression in Condensed Matter–1995”, Vol. 370 (Woodbury, New York, 1996), pp. 627–630.Google Scholar
- 7.A. V. Pavlenko, S. N. Malyugina, D. N. Kazakov, et al., “Plastic Deformation and Spall Fracture of Structural 12Cr18Ni10Ti Steel,” in AIP Conf. Proc. 1426 “Shock Compression in Condensed Matter–2011” (Melville, New York, 2012), Vol. 370, pp. 627–630.Google Scholar
- 10.S.-N. Chang and M. A. Meyers, “Martensitic Transformation Induced by Tensile Stress Pulse in Fe–22.5wt%Ni–4wt%Mn Alloy,” ActaMetal. 36 (4), 1085–1098 (1988).Google Scholar
- 14.V. A. Ogorodnikov, E. Yu. Borovkova, and S. V. Erunov, “Strength of Some Grades of Steel and Armco Iron under Shock Compression and Rarefaction at Pressures of 2–200GPa,” Fiz. Goreniya i Vzryva 40 (5), 109–117 (2004) [Comb. Expl. ShockWaves (Engl. Transl.) 40 (5), 597–604 (2004)].Google Scholar
- 15.G. V. Garkushin, G. I. Kanel, and S. V. Razorenov, “Influence of Structure Factors on Submicrosecond Strength of Aluminum Alloy D16T,” Zh. Tekhn. Fiz. 78 (11), 53–59 (2008).Google Scholar
- 16.G. I. Kanel, “Work of Spalling Fracture,” Fiz. Goreniya i Vzryva, No. 4, 84–88 (1982) [18 (4), 461–464 (1982)].Google Scholar
- 17.T. Antoun, L. Seaman, D. R. Curran, et al., Spall Fracture (Springer, New York, 2003).Google Scholar