Formation of α-Widmanstätten structure: effects of grain size and cooling rate on the Widmanstätten morphologies and on the mechanical properties in Ti6Al4V alloy
2001; Elsevier BV; Volume: 329; Issue: 1-2 Linguagem: Inglês
10.1016/s0925-8388(01)01571-7
ISSN1873-4669
AutoresF.J. Gil, Maria‐Pau Ginebra, José María Manero, Josep A. Planell,
Tópico(s)Metal and Thin Film Mechanics
ResumoThe coarseness of the transformed β-heat treated Ti6Al4V has a strong influence on its properties. The effects of solution temperatures and cooling rate on the Widmanstätten morphologies and on mechanical properties have been determined. The α-Widmanstätten plates size increases when the cooling rate decreases and a certain decrease of α-allotromorphous phase size at the grain boundaries can be observed when the cooling rate is increased. The tensile strength can be reduced about 80 MPa with the slower cooling rate from the β annealing temperatures when comparing air cooling to water quenching for thinner section sizes.
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