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3篇 您的检索式:作者名="Pradip Samanta"
    题名 作者 年代 出处 被引量
1Effect of pouring temperature on cooling slope casting of semi-solid Al-Si-Mg alloy显示文摘Present trend of semi-solid processing is directed towards rheocasting route which allows manufacturing of near-net-shape cast components directly from the prepared semi-solid slurry. Generation of globular equi-axed grains during solidification of rheocast components, compared to the columnar dendritic structure of conventional casting routes, facilitates the manufacturing of components with improved mechanical properties and structural integrity. In the present investigation, a cooling slope has been designed and indigenously fabricated to produce semi solid slurry of Al-Si-Mg (A356) alloy and successively cast in a metallic mould. The scope of the present work discusses about development of a numerical model to simulate the liquid metal flow through cooling slope using Eulerian two-phase flow approach and to investigate the effect of pouring temperature on cooling slope semi-solid slurry generation process. The two phases considered in the present model are liquid metal and air. Solid fraction evolution of the solidifying melt is tracked at different locations of the cooling slope, following Schiel s equation. The continuity equation, momentum equation and energy equation are solved considering thin wall boundary condition approach. During solidification of the liquid metal, a modified temperature recovery scheme has been employed taking care of the latent heat release and change of fraction of liquid. The results obtained from simulations are compared with experimental findings and good agreement has been found.Prosenjit Das Sudip K. Samanta Himadri Chattopadhyay Pradip Dutta 2012Acta Metallurgica Sinica(English Letters)2012,25,5:4
2Microbial mat mediated structures in the Ediacaran Sonia Sandstone, Rajasthan, India, and their implications for proterozoic sedimentation 显示文摘Subir Sarkar Pradip K Bose Pradip Samanta 2007Geobiology2007,47,1:1
3Microbial mat-induced sedimentary structures in siliciclastic sediments: Examples from the 1.6 Ga Chorhat Sandstone, Vindhyan Supergroup, M.P., India显示文摘Subir Sarkar Santanu Banerjee Pradip Samanta Silambuchelvan Jeevankumar 2006Journal of Earth System Science2006,,1:1
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