Effect of Zn Content on Aging Behavior of Binary Mg-Zn Alloys

Abstract:

The Vickers micro hardness measurements and high resolution transmission electron microscopy (HRTEM) observation were carried out to investigate the effect of Zn content on aging behavior of Mg-Zn alloys. The hardness increased drastically after aging at 473 K in the Mg-Zn alloys with higher Zn concentration. And higher maximum hardness was obtained at the earlier aging time in the alloys with higher Zn concentration. In bright field image and HRTEM, the particle shaped contrasts of the precipitates were not appeared in 3.8%Zn. The particle shaped contrasts of the precipitates were appeared as indicated by arrows in 4.7 and 6.5%Zn. The contrasts of row on {110}_Mg planes and the β₁’ phase appeared in the water quenched 4.7 and 6.5%Zn alloy age at 473 K for 3.6 ks.

• Periodical: Advanced Materials Research (Volume 409)
• Pages: 354-357
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.409.354
• Online since: November 2011
• Authors: Ryosuke Nakanishi, Tokimasa Kawabata, Kenji Matsuda, Susumu Ikeno
• Keywords: Mg-Zn Alloy, Transmission Electron Microscopy (TEM)

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