Details

Autor(en) / Beteiligte

• Shi, Quanxin
• Wang, Cuiju
• Deng, Kunkun
• Nie, Kaibo
• Liang, Wei

Titel

Recrystallization Behavior of a Mg-5Zn Alloy Influenced by Minor SiC p during Hot Compression

Ist Teil von

• Materials, 2022-11, Vol.15 (23)

Ort / Verlag

Switzerland

Erscheinungsjahr

2022

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• The influence of minor SiC on the dynamic recrystallization (DRX) and dynamic precipitation behaviors of the Mg-5Zn matrix were investigated through the hot compression test. The results showed that the addition of SiC improved the DRXed ratio of Mg-5Zn matrix, but the recrystallized grains in 1 vol.% 5 μm SiC /Mg-5Zn material were mainly formed by the "bulging" nucleation of the grain boundary at a low compressive strain (~0.05, ~0.1 and ~0.35), and PDZ (particle deformation zone) around SiC had little effect on the recrystallization nucleation. However, the fine recrystallized grains appeared around the particles when the compressive strain reached ~0.7, which was attributed to the promotion effect of PDZ on recrystallization nucleation. This shows that PDZ around particles can promote DRX nucleation under large strain. Meanwhile, compared to the Mg-5Zn alloy, the volume fraction and size of the secondary phase in the SiC /Mg-5Zn material increased due to the influence of SiC on the recrystallization behavior of Mg-5Zn matrix.