The purpose of this research is to develop a model for the ferrite-to-austenite transformation on heating which would include the possibility of the change in the character of the transformation from diffusional to mixed-mode and would be less computationally demanding. A physics-based model is constructed for the ferrite-austenite phase transformation of low carbon steels. The model is descret...

The acoustic losses in single crystals of manganese femtes were studied in the temperature range from 180 to 650 K by applying longitudinal vibrations of 150 kHz. Loss peaks were observed at 232 and 537 K with activation energies of 0.3 and 0.8 eV, respectively. The first loss peak at 232 K is regarded as a stress-induced relaxation of electrons between two and three-valent ions. The second pea...

ferrite sind magnetische werkstoffe, die in der technik vielseitige verwendung finden.z.b. ferritantennen, magnetophon, magnetische verstarker, magnetregler informationsspeicher,schaltelemente ; u.s.w. neue typen von ferriten erschlissen sich immer wieder neue anwendungsgebiete. die magnetische eigenschaft der ferrite hangen von der anordnung der atomen in kristallstruktur abo ferrite haben ein...