Abstract
The purpose of this research is to study the influence of trace Titanium (Ti) on the microstructures and properties of as-cast Mg-9Al alloy. We found that Ti could increase the corrosion resistance of the alloy inNaCl solution. The addition of trace Ti in Mg-9Al cast alloy improved the properties greatly. The elongation (δ5) of the alloys was also improved greatly with Minor addition of Ti as low as 0.015wt%. The improvements on the mechanical properties and corrosion resistence were mainly due to the inhibition of Ti to the heterogeneous nucleation during solidification and the modification of β phase. As the Ti additional amount increases, the grain of as-cast Mg-9Al alloy coarsens rapi- dly. Meanwhile, the β phase was refined and changed from semi-netted shape to short rods or even spheres.
| Original language | English |
|---|---|
| Pages (from-to) | 2583-2586 |
| Number of pages | 4 |
| Journal | Materials Science Forum |
| Volume | 475-479 |
| Issue number | IV |
| DOIs | |
| State | Published - 2005 |
| Event | PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: 2 Nov 2004 → 5 Nov 2004 |
Keywords
- Corrosion resistance
- Grain coarsening
- Mechanical properties
- Microstructure
- Ti