Fig. 3: TGMs-induced strain partitioning behavior at dendrite-scale.
a–d TGMs-induced εxx distribution and evolution in the case with slip bands at 900 °C, suggesting that the εxx within slip bands is localized at dendrite cores. The \({\bar{\varepsilon }}_{{\mbox{yy}}}\) denotes global strain. e–h TGMs-induced lateral strain εyy distribution and evolution in the case without slip bands at 980 °C, indicating that a higher magnitude of εyy is concentrated at dendrite cores. i, j εxx and εyy distributions in the case without TGMs at 900 °C, showing εxx localized at carbides instead, and indicating an absence of εyy localization correlated with dendrite positions. k TGMs-induced εxx distribution along path B-B’ marked in (d), suggesting that the strain partitioning degree of εxx increases with global strain levels. Logarithmic y-axis is applied to clearly show the strain partitioning at low global strains. l TGMs-induced εyy distribution along path A-A’ marked in (f), where the strain partitioning degree of εyy decreases with global strain levels. The lateral strain from the case without TGMs in (j) is plotted for comparison, which demonstrates that no lateral strain partitioning occurs in the absence of TGMs.
