Structural characterization of {101̅2} twin tip in deformed magnesium alloy

Using transmission electron microscopy (TEM) and high-resolution TEM (HRTEM), we characterized 101̅2 twin tip morphology in Mg alloy and found twin tip can be sharp and blunt. The sharp twin tip ends up with Basal–prismatic (BP/PB) interfaces, while the blunt twin tip ends up with 1̅012 interface (K...

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Veröffentlicht in:Materials characterization 2015-12, Vol.110, p.39-43
Hauptverfasser: Tu, J., Zhang, X.Y., Zhou, Z.M., Huang, C.
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Zhang, X.Y.
Zhou, Z.M.
Huang, C.
description Using transmission electron microscopy (TEM) and high-resolution TEM (HRTEM), we characterized 101̅2 twin tip morphology in Mg alloy and found twin tip can be sharp and blunt. The sharp twin tip ends up with Basal–prismatic (BP/PB) interfaces, while the blunt twin tip ends up with 1̅012 interface (K2 plane) and BP/PB interfaces. According to these structural features, the migration of 101̅2 twin tip boundary associated with the successive glide of twinning dislocations on the 101̅2 interfaces (K1 plane), K2 interfaces and BP/PB interfaces was described. •101̅2 twin tip morphology can be sharp and blunt.•The sharp twin tip ends up with Basal–prismatic (BP/PB) interfaces.•The blunt twin tip ends up with 101̅2 interface (K2 plane) and BP/PB interfaces.
doi_str_mv 10.1016/j.matchar.2015.10.012
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subjects Basal–prismatic interfaces
Boundaries
Glide
Magnesium alloy
Magnesium base alloys
Migration
Planes
Structural analysis
Transmission electron microscopy
Twinning
{10[formula omitted]2} twin tip
title Structural characterization of {101̅2} twin tip in deformed magnesium alloy
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