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Metals 2016, 6(9), 201; doi:10.3390/met6090201

The Influence of Different External Fields on Aging Kinetics of 2219 Aluminum Alloy

1
Light Metal Research Institute, Central South University, Changsha 410083, China
2
National Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China
*
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 19 July 2016 / Revised: 12 August 2016 / Accepted: 15 August 2016 / Published: 26 August 2016
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Abstract

By undertakig an aging experiment on 2219 aluminum alloy under different external field and by the method of hardness test, a comparative study on the kinetics of aging generated under different external fields was conducted. Furthermore, the time-temperature-transformation curves (TTT curve) were obtained, and the microstructure and mechanical property of the alloy under the effect of different external fields were tested. Results indicated that the effect of magnetic field postponed the alloy’s aging precipitation process, and slightly reduced its mechanical property; the effects of electric field accelerated the alloy’s aging precipitation, increased its mechanical property and made the precipitated phase of alloy smaller and diffused. In addition, through analysis, it was concluded that the performance of the specimen was even more balanced under the effect of electromagnetic field. View Full-Text
Keywords: 2219 aluminum alloy; aging kinetics; diffusion activation energy; external fields 2219 aluminum alloy; aging kinetics; diffusion activation energy; external fields
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Zhan, L.; Li, W.; Ma, Q.; Liu, L. The Influence of Different External Fields on Aging Kinetics of 2219 Aluminum Alloy. Metals 2016, 6, 201.

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