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Effect of alternate magnetic field on LY12 structure properties after thermal plastic forming

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Abstract

The powerful alternate magnetic field treatment is an effective not-heat treatment, which improves the coriaceous performance of the material. In order to reveal the effect rule of the powerful alternate magnetic field on the structure capability after thermal plastic forming, the experimental methods were adopted to compare the microcosmic structure of the LY12 aluminium alloy test pieces before and after the powerful alternate magnetic field treatment. The mechanism of the structure refining was analyzed theoretically. According to the effect rule of the alternate magnetic field on critical grain growth work and the magnetic vibration-constriction mechanism, the structure dynamics factors were analyzed. The results show that, after a certain powerful alternate magnetic field treatment, the mechanical capability of the LY12 aluminium alloy after thermal plastic forming can be reinforced, the structure intertwist deriving from the thermal plastic forming becomes even and the branch crystal is also smashed, consequently refines the structure. The powerful alternate magnetic field treatment can be regarded as an effective method to improve metal structure performance after heat plastic forming.

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Authors and Affiliations

  1. College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China

    Ge-xin Chen  (陈革新), Yu-ming Fu  (付宇明), **g Yin  (尹 京) & Hong **ao  (肖 宏)

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  1. Ge-xin Chen  (陈革新)
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  2. Yu-ming Fu  (付宇明)
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  3. **g Yin  (尹 京)
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  4. Hong **ao  (肖 宏)
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Correspondence to Ge-xin Chen  (陈革新).

Additional information

Foundation item: Project(50675190) supported by the National Natural Science Foundation of China

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Chen, Gx., Fu, Ym., Yin, J. et al. Effect of alternate magnetic field on LY12 structure properties after thermal plastic forming. J. Cent. South Univ. Technol. 15 (Suppl 2), 284–287 (2008). https://doi.org/10.1007/s11771-008-0472-2

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  • DOI: https://doi.org/10.1007/s11771-008-0472-2

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