Behaviour of ODS 12Cr steel under thermal treatment at micro and macro level: A positron annihilation and Vickers hardness study

The behaviour of ODS 12Cr steel under thermal treatment is studied in this report at micro and macro level. ODS 12Cr steel is always in the ferrite phase and has a melting point at 1500 ºC. Before studying,<br/>the retrieved samples were metallographically prepared in four steps: mounting, grinding, mechanically polishing and electrolytically...

Kinetics of internal oxidation of Fe-Mn-Cr steel alloys

Selective oxidation behaviour of Fe-Mn-Cr steel alloys annealed at 950°C in Ar plus 5 vol.% H2 atmosphere under different annealing time and dew points was studied. The Fe-Mn-Cr steel alloys are externally oxidized when annealing at dew point of -45 °C, while internally oxidized at dew points of -10 and 10 °C. The internal oxides formed in the...

Investigation of heat transfer between the steel strip and the heat pipe in the heat pipe assisted annealing concept