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Effects of thermal treatment on precipitate shape and mechanical properties of Mg–8Gd–4Y–Nd–Zr alloy
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Xixiang Tang, Changping Deng, Yunlai Yang, Liu |
| Copyright Year | 2011 |
| Abstract | Abstract Precipitation reactions in a Mg–8Gd–4Y–Nd–Zr alloy have been investigated using TEM, HREM, hardness measurements and tensile testing. Globular β′ precipitates, which were different from the typical plate-shaped β′ precipitates usually observed in Mg–Gd-based alloys, were detected in the 160 °C/192 h-aged sample. Instead of dissolution and then precipitating as plate-shaped β′ precipitates, the formed globular β′ precipitates grew up when further aged at 215 °C, which resulted in the decrease in strength comparing with that of the 215 °C single-stage aged samples. Two-stage ageing treatments on the alloy demonstrated that ageing 192 h at 150 °C plus 16 h at 215 °C made the ultimate strength and the yield strength improved 17 MPa and 13 MPa, respectively. |
| Starting Page | 4994 |
| Ending Page | 4998 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.matdes.2011.06.033 |
| Alternate Webpage(s) | https://www.tpbin.com/download-firstpage/48651/article |
| Alternate Webpage(s) | https://doi.org/10.1016/j.matdes.2011.06.033 |
| Volume Number | 32 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
