Abstract
Features of the plastic deformation and dynamic spall fracture of Hadfield steel under conditions of shock wave loading at a straining rate of ~106 s-1 have been studied. The shock load (~30 GPa, ~0.2 μs) was produced by pulses of a SINUS-7 electron accelerator, which generated relativistic electron bunches with an electron energy of up to 1.35 MeV, a duration of 45 ns, and a peak power on the target of 3.4 × 1010 W/cm2. It is established that the spalling proceeds via mixed viscous-brittle intergranular fracture, unlike the cases of quasi-static tensile and impact loading, where viscous transgranular fracture is typical. It is shown that the intergranular character of the spall fracture is caused by the localization of plastic deformation at grain boundaries containing precipitated carbide inclusions.
| Original language | English |
|---|---|
| Pages (from-to) | 801-803 |
| Number of pages | 3 |
| Journal | Technical Physics Letters |
| Volume | 36 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
High-rate deformation and spall fracture of hadfield steel under action of high-current nanosecond relativistic electron beam. / Gnyusov, S. F.; Rotshtein, V. P.; Polevin, S. D.; Kitsanov, S. A.
In: Technical Physics Letters, Vol. 36, No. 9, 2010, p. 801-803.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High-rate deformation and spall fracture of hadfield steel under action of high-current nanosecond relativistic electron beam
AU - Gnyusov, S. F.
AU - Rotshtein, V. P.
AU - Polevin, S. D.
AU - Kitsanov, S. A.
PY - 2010
Y1 - 2010
N2 - Features of the plastic deformation and dynamic spall fracture of Hadfield steel under conditions of shock wave loading at a straining rate of ~106 s-1 have been studied. The shock load (~30 GPa, ~0.2 μs) was produced by pulses of a SINUS-7 electron accelerator, which generated relativistic electron bunches with an electron energy of up to 1.35 MeV, a duration of 45 ns, and a peak power on the target of 3.4 × 1010 W/cm2. It is established that the spalling proceeds via mixed viscous-brittle intergranular fracture, unlike the cases of quasi-static tensile and impact loading, where viscous transgranular fracture is typical. It is shown that the intergranular character of the spall fracture is caused by the localization of plastic deformation at grain boundaries containing precipitated carbide inclusions.
AB - Features of the plastic deformation and dynamic spall fracture of Hadfield steel under conditions of shock wave loading at a straining rate of ~106 s-1 have been studied. The shock load (~30 GPa, ~0.2 μs) was produced by pulses of a SINUS-7 electron accelerator, which generated relativistic electron bunches with an electron energy of up to 1.35 MeV, a duration of 45 ns, and a peak power on the target of 3.4 × 1010 W/cm2. It is established that the spalling proceeds via mixed viscous-brittle intergranular fracture, unlike the cases of quasi-static tensile and impact loading, where viscous transgranular fracture is typical. It is shown that the intergranular character of the spall fracture is caused by the localization of plastic deformation at grain boundaries containing precipitated carbide inclusions.
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U2 - 10.1134/S1063785010090087
DO - 10.1134/S1063785010090087
M3 - Article
VL - 36
SP - 801
EP - 803
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 9
ER -