An evaluation of hydrocarbon deposit tightness in aspect of CO₂ sequestration

The temperature activation of carbon saturation steel process

“…the atmosphere should be saturated with carbon atoms higher than carbon content present in the carburized material. The thickness of the carburized layer is determined chiefly by carburizing time and temperature of the carburized material [5][6][7]. For most steels, gas carburizing is carried out at the temperature of 880÷920°C [6].…”

Fractography and Porosity Analysis of Cr and Cr-Mo PM Steels

“…After these tests, the failure can be determined by studying the characteristics of the fracture surface. The fracture also gives information on the macroscopic scale about brittle or ductile character of failure [8][9][10][11]. Using light microscopy technique, the failure in metals can be classified according to loading mode (overload, fatigue, creep), amount of plastic deformation involved in failure and fracture micromechanism operating during monotonically increasing force [11].…”

“…Investigations of failures are carried out by SEM at high magnification, which enables observation of crack "nucleus" e.g. oxides, notches, foreign inclusions, nitrides, twins, grain boundaries and voids [8][9][10]. The morphology of the fracture surface is the source of information about the relationship between the microstructure and material properties, as well as the cause of early failure of the component and it is the result of individually acting fracture mechanisms.…”