摘要
As-cast microstructure of ZA53 Mg alloy in sand casting is mainly composed of δ-Mg matrix phase and τ [Mg12(Al, Zn)49] compound, in which semi-continuous network τ phase is distributed along δ-Mg matrix phase boundary. Tensile strength at room temperature and plasticity of the quenched alloy can be improved remarkably after solid solution at 335°C for 17 hours. Mechanical properties of the quenched ZA53 alloy is σb = 245 MPa and δ = 12% and the fracture morphology transforms from mixed fracture to tough fracture due to microstructure fully transforming single solid solution phase after solid solution at 343°C for 17 h.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 653-655 |
| 页数 | 3 |
| 期刊 | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| 卷 | 25 |
| 期 | 11 |
| 出版状态 | 已出版 - 11月 2005 |
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