Produção Nacional
Revisado por pares
Observations of grain boundary protrusions in static recrystallization of high-purity bcc metals
2007; Elsevier BV; Volume: 56; Issue: 10 Linguagem: Inglês
10.1016/j.scriptamat.2007.01.032
ISSN1872-8456
AutoresMarcelo Aquino Martorano, H.R.Z. Sandim, M. A. Fortes, Angelo Fernando Padilha,
Tópico(s)Microstructure and Mechanical Properties of Steels
ResumoProtrusions at migrating high-angle grain boundaries were observed following partial recrystallization of high-purity body-centred cubic refractory metals. Their morphology is similar to that previously observed in aluminium and is in good agreement with the predictions of a kinetic model based on the sinusoidal variation of the local driving pressure along the boundary. The heterogeneous dislocation structure intersecting the boundary is considered to cause this sinusoidal variation and, therefore, the growth of protrusions in the high-purity metals.
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