Ấn phẩm:
Numerical simulation and experimental study on effect of cooling rate on microstructure and strength of nanostructured materials
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This study examines the effect of cooling rate on the microstructure and mechanical properties of Al-based two-phase nanostructured materials cast through a copper mold. Using both numerical simulation via the finite element method (FEM) and experimental analysis, product thicknesses from 0.3 to 20 mm were investigated. The simulated cooling rates ranged from approximately 10² to 10⁴ K/s, showing that the size of intermetallic precipitates decreased with increasing cooling rate. The Abaqus/Standard platform was used for uncoupled heat transfer analysis, accounting for temperature-dependent conductivity, latent heat, and boundary conditions involving convection and radiation. Automatic time stepping was applied for numerical stability, and first-order heat transfer elements effectively captured latent thermal effects. The results demonstrate that optimizing the cooling rate refines the microstructure and enhances the alloy’s strength, confirming the effectiveness of combined experimental and simulation approaches in improving casting process design.
Mô tả
Vietnam Journal of Science and Technology, Vol. 63, No. 1
Tác giả
Nguyen, Hong Hai
Le, Minh Duc
Hoang, Thi Ngoc Quyen
Pham, Quang
Người hướng dẫn
Nơi xuất bản
Nhà xuất bản
Viện Kỹ thuật Nhiệt đới, Viện Hàn lâm Khoa học và Công nghệ Việt Nam
Năm xuất bản
2025-11
ISSN tạp chí
Nhan đề tập
Từ khóa chủ đề
Aluminium based , Al–Mn series , Nanostructured , Metallic glass , Cooling rate, , FEM simulation , Uncoupled heat transfer analysis
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Nguyen Hong Hai, Le Minh Duc, Hoang Thi Ngoc Quyen, Pham Quang.pdf
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