Eleventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. IV France 06 (1996) C8-115-C8-118
Internal Friction Study on Manet Steel : Effects of Cooling Rate from Austenitic DomainP. Gondi, R. Montanari and M.E. Tata
Dip. Ingegneria Meccanica, Università di Rom "Tor Vergata", Via della Ricerca Scientifica s.n.c., 00133 Roma, Italy
Snoek type Q-1 peaks observed in Fe-Cr-C alloys are related to jumps between equivalent octahedra or tetrahedra with n Cr atoms at the corners, with n up to 6 or 4. The effects of high T and cooling treatments are considered on the characteristics of the C-Crn associates and in consequence of martensite.The results are interpreted in terms of C-Crn associates acting as embryos for the nucleation of martensite with stability depending on tetrahedrality or octahedrality of the associates.
© EDP Sciences 1996