Abstract
The effects of little Ce addition on the as-cast microstructure and creep properties of Mg-3Sn-2Ca magnesium alloy were investigated. The results indicate that adding 0.5% (mass fraction) Ce to Mg-3Sn-2Ca alloy does not cause the formation of any new phase in the alloy. However, an interesting microstructural change in the as-cast Mg-3Sn-2Ca alloy added with 0.5%Ce is observed. After adding 0.5%Ce to Mg-3Sn-2Ca alloy, not only the volume fraction of CaMgSn phase in the alloy is decreased but also the CaMgSn phases in the alloy are refined. In addition, adding 0.5%Ce to Mg-3Sn-2Ca alloy can also improve the creep-resistant properties of the alloy. After adding 0.5%Ce to Mg-3Sn-2Ca alloy, the second creep rate of the alloy at 150 °C and 70 MPa for 100 h changes from 3.28×10-8 to 1.81×10-8 s-1. © 2009 The Nonferrous Metals Society of China.
| Original language | English |
|---|---|
| Pages (from-to) | 1087-1092 |
| Number of pages | 5 |
| Journal | Transactions of Nonferrous Metals Society of China (English Edition) |
| Volume | 19 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Oct 2009 |
Keywords
- CaMgSn phase
- Ce
- magnesium alloy
- Mg-3Sn-2Ca alloy