Abstract
The effect of the change in microstructure produced by means of different heat treatments on mechanical properties and fracture topography of a Ti-6Al-4V alloy has been studied. It has been demonstrated that an acicular microstructure produces a loss of ductility independently of its morphology. However, this morology has a strong influence on toughness. The coarse acicular microstructure obtained by air cooling from the β phase shows the highest toughness. However, the fine needles of α′ martensite produced by water quenching from the β phase have the lowest values. The different fracture mechanisms and the crack growth path tortuosity justify this change in behaviour.
| Translated title of the contribution | Effect of microstructure on mechanical properties and topography of a Ti-6Al-4V alloy |
|---|---|
| Original language | Spanish |
| Pages (from-to) | 372-378 |
| Number of pages | 7 |
| Journal | Revista de Metalurgia |
| Volume | 24 |
| Issue number | 6 |
| Publication status | Published - Nov 1988 |