Steady plastic shocks generated by planar impact on metal-polymer laminate composites, are analyzed in the framework of gradient plasticity theories. The laminate material has a periodic structure with unit cell composed of two layers of different materials. First and second order gradient plasticity theories are used to model the structure of steady plastic shocks. In both theories, the effect of the internal structure is accounted for at the microscopic level ...
Samples were studied of different AISI type 410 steel castings where brittleness phenomena occurred during different steps of the hot working. The composition is typical for an AISI 410 steel, particularly the nitrogen content. The precipitates in the center and at the boundary of the ferritic grain were obtained by 'unusual' heat treatments in the temperature range 450 to 820 C with the following treatment times: 16 h at 450 ...
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