DOAJ Open Access 2022

Cluster Hardening Effects on Twinning in Mg-Zn-Ca Alloys

Ruixue Liu Jie Wang Leyun Wang Xiaoqin Zeng Zhaohui Jin

Abstrak

Twinning is a critical deformation mode in Mg alloys. Understanding deformation twinning (DT) is essential to improving mechanical properties of Mg alloys. To address the experimentally observed conspicuous hardening effects in Mg-1.8Zn-0.2Ca alloys, interactions between the {10–12} twin boundaries (TBs) and solute clusters in Mg-Zn-Ca alloys were examined via molecular dynamics (MD) simulations. We find that the Zn/Ca-containing clusters show different hindering effects on TBs and an increment in the applied shear stress of 100 MPa is required to accomplish the interaction between the boundary and the cluster with Ca content > 50 at%. The cluster hardening effects on twinning are positively correlated to the Ca content and the size of the clusters in Mg-Zn-Ca alloys.

Topik & Kata Kunci

Mining engineering. Metallurgy

Penulis (5)

Ruixue Liu

Jie Wang

Leyun Wang

Xiaoqin Zeng

Zhaohui Jin

Format Sitasi

APA MLA BibTeX

Liu, R., Wang, J., Wang, L., Zeng, X., Jin, Z. (2022). Cluster Hardening Effects on Twinning in Mg-Zn-Ca Alloys. https://doi.org/10.3390/met12040693

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.3390/met12040693
Akses: Open Access ✓