Influence of TiCN addition on the microstructures and mechanical properties of the AZ31 alloy

The microstructure and mechanical properties of extruded AZ31 + xTiCN (x = 0, 0.4, 0.8, 1.2 wt%) were investigated, and the strengthening mechanism was discussed. X-ray diffraction and energy dispersive spectroscopy (EDS) confirmed that the Al(4)C(3) and Al(2)MgC(2) duplex phase particles were gener...

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Detalles Bibliográficos
Autores principales: Li, Qi-feng, Qiu, Wei, Xie, Wen, Huang, Wei-ying, Zhou, Li-bo, Ren, Yan-jie, Chen, Jian, Yao, Mao-hai, Xiong, Ai-hu, Chen, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9597589/
https://www.ncbi.nlm.nih.gov/pubmed/36337939
http://dx.doi.org/10.1039/d2ra05280f
Descripción
Sumario:The microstructure and mechanical properties of extruded AZ31 + xTiCN (x = 0, 0.4, 0.8, 1.2 wt%) were investigated, and the strengthening mechanism was discussed. X-ray diffraction and energy dispersive spectroscopy (EDS) confirmed that the Al(4)C(3) and Al(2)MgC(2) duplex phase particles were generated in situ by TiCN and Al particles, which act as the nucleation precursors of Mg grains during solidification. The grain size decreased and then increased with increasing TiCN addition. The yield strength (YS) and ultimate tensile strength (UTS) increased with increasing TiCN addition reaching a maximum (217.5 MPa) at 0.4 wt%, and in contrast, the elongation index (EI) continuously decreased with increasing TiCN addition.

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