The multiple effects of TiCp addition on the solidification process of cast aluminum alloy

• DOI: 10.1016/j.jmrt.2024.08.017
• Publication Date: 2024-08-06T17:56:40Z
• Authors: Honglei Xi; Shufan Wu; Wentao Jiang; Jiawen Feng; Changyi Yang; Wenlong Xiao; Chaoli Ma
• Keywords: TiCp; Mining engineering. Metallurgy; Heterogeneous nucleation; 0203 mechanical engineering; Impacts on solidification parameters and organization/mechanical properties; TN1-997; 02 engineering and technology

The TiCp can act as heterogeneous nucleation site and greatly refine the grain size of aluminum alloy has been widely accepted (stage I). However, its (TiCp) subsequent impact on thermal solute atoms diffusion for it acting were rarely explored II). In this research, besides effect refinement, obvious impacts cooling rate R gradient concentration Gc/temperature GT at front solid-liquid interface also in detail. addition, exploration results depict that variation parameters R,GT Gc caused by addition lead to significant changes microstructure alloy. Besides, unlike refinement nucleation, some even make negative effects case. Thus, research provide a more comprehensive understanding about cast