A study of deformation behavior LZ50 axle steel has great significance to the railway industry. Hot-deformation tests were performed using a Gleeble-3800 thermal mechanical simulator at temperatures (900, 1000 and 1100) °C with strain rates (0.1, 1.0 10.0) s–1 under different degrees 0.2, 0.6 1.0. True stress-strain curves discussed obtain hot-processing maps. Then maps parameters including saf...

Density and hardness of glasses are known to increase upon both compression at the glass transition temperature (Tg) and ambient pressure sub-Tg annealing. However, a serial combination of the two methods does not result in higher density and hardness, since the effect of compression is countered by subsequent annealing and vice versa. In this study, we circumvent this by introducing a novel tr...

Mg-13Gd-4Y-2Zn-0.4Zr (wt. %) alloy bar produced by three passes reciprocating upsetting extrusion (named as RUE-ed bar) exhibited fine grain with the average size of 3.02 μm. Hot compression tests were carried out on Gleeble-3800 unit at different deformation temperatures (653, 683, 713, and 743 K) strain rates (0.001–1 s, 0.01–1 0.1–1 0.5–1 s). This showed work hardening softening stages in ho...

Phenomenological reactive flow models for the shock initiation and detonation of solid high explosives, such as the Ignition and Growth model and the Johnson-Tang-Forest (JTF) model have been very successful in reproducing most of the main features of these reactive flows. The reaction rate expressions in these models depend upon the average compressions and pressures attained in the reacting e...

in this research, mechanical alloying was used to synthesize ultrafine grained aa2024 and aa2024-b4c powders in an attrition mill under argon atmosphere up to 50 h with the rotational speed of 400 rpm. in order to determine the grain size of the matrix, x-ray diffraction test and williamson–hall method was used. after mechanical alloying, hot pressing and hot extrusion were used for densificati...

LLE Review, Volume 134 127 Introduction The cone-guided scheme for fast-ignition inertial confinement fusion (ICF)1,2 provides the potential of higher gains at lower total driver energy than conventional central hot-spot–ignition schemes. In this scheme, a spherical target with a hollow gold cone attached is first compressed by laser beams outside the cone and then ignited by a petawatt (PW) sh...