Abstract
New tentative semi-solid injection molding machine for magnesium alloy which was able to control solid fraction from 0 to 30% was developed. The solidification cracking susceptibility of the heat-resistant magnesium alloy containing 4% Al and 3% Ca fabricated by semi-solid injection molding and die-casting were investigated. The critical strain for solidification cracking of the magnesium alloy was obtained by U-type hot cracking test using in-situ observation method. High temperature ductility curve between liquidus and solidus temperatures were compared with semi-solid injection molding and die-casting. As result, solidification cracking susceptibility of semi-solid injection molding process with solid fraction of 25% was better than that of die-casting.
| Original language | English |
|---|---|
| Pages (from-to) | 223-228 |
| Number of pages | 6 |
| Journal | Keikinzoku/Journal of Japan Institute of Light Metals |
| Volume | 63 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Fracture strain
- Heat-resistant magnesium alloy
- Injection molding
- Semi-solid process
- Solidification cracking
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry