| Autor: |
Wei Yuan, Guo-liang Shi, Ding-fei Zhang, Qing-wei Dai, Hong-ling Duan |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
Transactions of Nonferrous Metals Society of China. 18:s59-s63 |
| ISSN: |
1003-6326 |
| DOI: |
10.1016/s1003-6326(10)60175-6 |
| Popis: |
The microstructures and mechanical properties of a new Mg-6%Zn-1%Mn (mass fraction) wrought magnesium alloy were studied, which could be extruded smoothly at 310-330℃ with a complete dynamic recrystallization. After solution treatment one and two-step aging techniques were used. All as-aged microstructures contained two types of dispersed phases: β phases and pure α-Mn particles. The two-step aging had a better strengthening effect than the traditional one-step aging, and the strength value achieved by the two-step aging could reach that of the ZK60 wrought magnesium alloy. The outstanding precipitation strengthening effect of the alloy should be attribute to the GP zones, diffusive solute-rich zones and some metastable phases formed during the first step aging that provide more effective nuclei for Mg-Zn strengthening phases during the second step aging. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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