Abstract
A commercially pure titanium plate was lap joined to a structural steel plate via friction stir welding, and the microstructures at the lap joint interface were intensively examined by means of electron backscatter diffraction analysis and transmission electron microscopy. Swirling-like macro- and micro-intermixing zones of titanium and steel are formed along the interface, where tiny Fe-Ti intermetallic particles are dispersed and mixed with β titanium in layers. The lap joint has high shear tensile strength, which is supposed to result from the dispersion of tiny Fe-Ti intermetallic particles and the formation of β titanium at the joint interface.
| Original language | English |
|---|---|
| Pages (from-to) | 2317-2320 |
| Number of pages | 4 |
| Journal | Materials Letters |
| Volume | 64 |
| Issue number | 21 |
| DOIs | |
| State | Published - 15 Nov 2010 |
| Externally published | Yes |
Keywords
- Dissimilar lap joint
- Friction stir welding
- Intermetallic compound
- Pure titanium
- Transmission electron microscopy
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