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. 2016 Mar 15;6:23026. doi: 10.1038/srep23026

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Copyright © 2016, Macmillan Publishers Limited

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Shear modulus data for the initial state (red circles) and after crystallization (blue triangles) at T_a = 890 K are shown. The calorimetric glass transition temperature T_g and crystallization onset temperature T_x are indicated by the arrows. Structural relaxation-induced shear modulus increase at temperatures T > 500 K and shear softening in the range T_g < T < T_x as well as strong crystallization-induced increase of G at T > T_x constitute the basic features of the elastic shear behavior of metallic glasses. The two internal friction peaks reflect the two stages of glass crystallization.