Abstract
An ultrafine grained Fe-40Al intermetallic compound is fabricated by a self-propagating high temperature synthesis (SHS) casting. The XRD result shows that the Fe-40Al intermetallic compound consists of the B2 FeAl phase. The Fe-40Al intermetallic compound presents ultrafine grain size in the range of 100-600 nm, leading from the high nucleation rate and the low growth rate. The Fe-40Al intermetallic compound exhibits high hardness (3.4 GPa) and high bending strength (830 MPa) and high compressive strength (2700 MPa), which originate from the ultrafine-structure in the material. The effect of the load on dry-sliding wear rate of the material against AISI52100 steel was investigated. The wear rate increases with the increase of normal load. The dominated wear mechanism is microfracture.
| Original language | English |
|---|---|
| Pages (from-to) | 50-56 |
| Number of pages | 7 |
| Journal | Acta Metallurgica Sinica (English Letters) |
| Volume | 23 |
| Issue number | 1 |
| State | Published - 2010 |
| Externally published | Yes |
Keywords
- Iron aluminides
- Preparation
- Self-propagating high temperature synthesis (SHS) casting
- Ultrafine grain
- Wear