期刊
JOURNAL OF MATERIALS RESEARCH
卷 23, 期 10, 页码 2685-2691出版社
MATERIALS RESEARCH SOC
DOI: 10.1557/JMR.2008.0328
关键词
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资金
- Tsinghua-CityU Collaboration Scheme
- National Natural Science Foundation of China [50571048]
The effect of electropulsing treatment (EPT) on the solution behavior of aged Mg alloy AZ61 strip was investigated using scanning electron microscope (SEM) and x-ray diffraction (XRD). It was found that EPT accelerated tremendously the dissolution of beta phase into alpha matrix in an aged Mg alloy AZ61 strip. The dissolution of beta phase took place in less than 4 s at relatively low temperature under EPT, compared with that in conventional heat treatment. A mechanism for rapid solid solution process during EPT was proposed based on the coupling of the thermal and athermal effects. The results in this investigation indicated that EPT played an important role in the nonequilibrium microstructural evolution in the alloy. It is supposed that EPT can provide a highly efficient approach for solid solution treatment of the alloy.
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