Funct. Mater. 2024; 31 (1): 39-43.

doi:https://doi.org/10.15407/fm31.01.39

Study of the microstructure and mechanical properties of a TiCu-based alloy produced by vacuum casting with rapid cooling

Xianzhang Feng1, Haihang Wang1, Xinfang Zhang2, Junwei Cheng2,Tao Hou3

1School of Aeronautical Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, P.R. China, 450046
2School of Materials Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, P.R. China, 4500463Hebi City Special Equipment Inspection Institute, Henan, P.R. China, 458030

Abstract: 

The microstructure of the TiCu alloy obtained by solidification by vacuum casting into a copper mold was studied for observation and imaging of tissues. Research was carried out using optical microscopy, scanning electron microscopy and transmission electron microscopy. Studies have shown that upon rapid cooling of TiCu-based alloys, martensitic structures are formed, which are embedded in γ-TiCu and TiCu. They effectively counteract local shear stress, which leads to rotational diffusion and an increase in shear bands. This prevents the propagation of microcracks caused by excessive local stress during deformation. Research results show that it can effectively improve the microstructure and mechanical properties of alloys based on TiCu.

Keywords: 
TiCu based alloy, rapid solidification, rapid cooling, microstructure, martensite.

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