Microstructure and texture evolution of deformed Mg-Zn alloy during recrystallization

The microstructure and texture evolution of Mg-Zn alloy during recrystallization was investigated by EBSD in the present study. Deformed region, fine DRXed region and coarse DRXed region were obtained in Mg-Zn alloy during deformation. It was found that the texture intensity in DRXed region was weak...

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Veröffentlicht in:Materials characterization 2018-11, Vol.145, p.501-506
Hauptverfasser: Du, Yuzhou, Zheng, Mingyi, Ge, Yanfeng, Jiang, Bailing, Shen, Mingjie
Format: Artikel
Sprache:eng
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Zusammenfassung:The microstructure and texture evolution of Mg-Zn alloy during recrystallization was investigated by EBSD in the present study. Deformed region, fine DRXed region and coarse DRXed region were obtained in Mg-Zn alloy during deformation. It was found that the texture intensity in DRXed region was weaker compared with the deformed region. The second phase at grain boundaries resulted in the formation of fine DRXed grains with weaker texture compared with the coarse DRXed region. Additionally, a remarkable grain-size driven textural transition from ⟨10.0⟩–⟨11.0⟩ texture to ⟨11.0⟩ texture were detected with the growth of DRXed grains. The recrystallized grains with small grain size showed a fiber texture distributing homogeneously between ⟨10.0⟩ and ⟨11.0⟩, while ⟨11.0⟩ fiber texture was predominant for the large recrystallized grains. It is suggested that ⟨11.0⟩ oriented grains grew faster than other oriented grains, which was ascribed to larger misorientation between ⟨11.0⟩ oriented grains and their neighboring grains. [Display omitted] •The texture intensity in the Mg-Zn alloy relied on the microstructure.•Fine DRXed grains showed a fiber texture distributing between ⟨10.0⟩ and ⟨11.0⟩.•Coarse DRXed grains mainly exhibited ⟨11.0⟩ fiber texture.•The preferred growth of ⟨11.0⟩ oriented grains resulted in texture evolution.
ISSN:1044-5803
1873-4189
DOI:10.1016/j.matchar.2018.09.021