With the calculated isothermal section from the Mg-Zn-Al technique at specific temperatures, to additional confirm

With the calculated isothermal section from the Mg-Zn-Al technique at specific temperatures, to additional confirm the phase relations around intermetallic compounds. Figure 3b shows the diffusion path in the diffusion couple Mg-Al20Zn determined at 360 C in earlier research [20], exactly where the diffusion profile moves across the hcp-Mg, , , and single-phase region in sequence. In accordance with [20], Zn was located in all three IMC layers of , , and , and its content material enhanced discontinuously towards the Al-Zn substrate. The typical composition of the thickest layer formed adjacent to the Al-Zn side in the diffusion couple was Al45 Mg40 Zn15 , which is further verified by TEM characterization to be the -(Al, Zn)49 Mg32 phase. The -Al3 Mg2 phase typically noticed in Al-Mg binary systems was replaced by phase CFTR corrector 6 supplier detect the diffusion path, as shown in Figure 3c. It might be observed that phase lies in between and Al3 Mg2 phase, exhibiting a wide solid solubility range of Zn. The maximum homogeneity content of Zn in phase is eight.5 on the diffusion path, which is related to the measured value in the present alloy sample four in Table 1. By comparing sample 4 with sample 1, the increment of Zn content material from 3.9 to 7.7 results in a clear lower in Al content from 53.18 to 41.38 , indicating the Zn atoms dissolved in phase preferred to occupy the web sites with the Al atoms. This result is consistent with all the preceding experimental findings by Wang et al. [20]. Nevertheless, the diffusion path on the experimental data in this study deviates in the calculated single phase area to exhibit a larger Mg con.