R. Radis, S. Schwarz, S. Zamberger, E. Kozeschnik:
"AlN Precipitation During Isothermal Annealing of Ultra Low Carbon Steel";
Steel Research International, 82 (2011), 8; S. 905 - 910.

Kurzfassung englisch:
The precipitation of AlN is investigated in the austenite region of ultra low carbon steel. The evolution of the size and the morphology of AlN precipitates are studied by transmission electron microscopy (TEM) after isothermal annealing for different times at temperatures of 950 8C and 1050 8C. Various different morphologies are observed, including cuboids, large plates as well as irregular structures. In addition to the experimental analysis, thermo-kinetic simulations are carried out with the software package MatCalc. The numerically calculated evolution of the mean radii as well as the time-temperature-precipitation (TTP) diagram for AlN precipitation in the present alloy show good agreement with experiment.

AlN, grain boundary precipitation, precipitation kinetics, ultra low carbon steel

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