《Table 1:EDS results of precipitates and matrix for Fe-Ga-Dy alloys(at.%)》

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《Effect of Dy doping on magnetostrictive and mechanical properties of Fe_(83)Ga_(17) alloy》

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Figure 3 shows the SEM morphology of the Fe83Ga17Dy0.4 alloy and corresponding EDS for grain boundary（Fig.3c）and grain（Fig.3d）.It can be found that the matrix is mainly composed of Fe and Ga，while the precipitates contain relatively high percentage of Dy，besides Fe and Ga.Quantitative analysis results of EDS are given in Table 1.Compared with the matrix（Fe 83.22at.%，Ga 16.78at.%），the precipitates（Fe 56.23at.%，Ga 33.57at.%，Dy 10.20at.%）are confirmed to be a Dy-rich phase，indicating that Dy atoms accumulate more at the grain boundaries.