First measurement of the heat effect of the grain boundary wetting phase transition

• Published in: Journal of materials science Vol. 46; no. 12; pp. 4243 - 4247
• Main Authors: Straumal, B. B., Kogtenkova, O. A., Protasova, S. G., Zięba, P., Czeppe, T., Baretzky, B., Valiev, R. Z.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.06.2011; Springer; Springer Nature B.V
• Subjects: Alloys; Aluminum; Aluminum base alloys; Asymmetry; Characterization and Evaluation of Materials; Chemistry and Materials Science; Classical Mechanics; Crystallography and Scattering Methods; Differential scanning calorimetry; Grain boundaries; High temperature effects; Iib 2010; Materials Science; Measurement; Melting; Phase transitions; Polymer Sciences; Solid Mechanics; Wetting; Zinc; Zinc compounds; Differential Scanning Calorimetry Curve; Heat Effect; Melting Heat; Differential Scanning Calorimetry; High Pressure Torsion

The melting of coarse- and fine-grained Al–Zn–Mg alloys was studied by the differential scanning calorimetry. The asymmetric shape of the melting curve indicates the heat effect of the grain boundaries (GBs) wetting. The difference between melting heat of coarse- and fine-grained samples permitted t...