Abstract
The mechanical properties and strengthening mechanisms in laser beam welds of pure titanium were investigated. Although grain coarsening is evidently observed in the heat affected zone (HAZ) and fusion zone (FZ) compared with the base metal (BM), the tensile and hardness tests indicate that the HAZ and FZ are stronger than the BM under the welding conditions employed in the present work. The strengthening mechanism in the HAZ is ascribed to the substructure strengthening and that in the FZ is attributed to the combination of the substructure strengthening and the solute solution strengthening.
| Original language | English |
|---|---|
| Pages (from-to) | 581-585 |
| Number of pages | 5 |
| Journal | Science and Technology of Welding and Joining |
| Volume | 16 |
| Issue number | 7 |
| DOIs | |
| State | Published - Oct 2011 |
| Externally published | Yes |
Keywords
- Laser beam welding
- Mechanical properties
- Microelement
- Pure titanium
- Strengthening mechanism
- Substructure
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