Rheological modeling and simulation of semi-solid slurry based on experimental study. (November 2022)

• Record Type: Journal Article
• Authors: Qu, Wenying; Chen, Juan; Li, Zhong; Luo, Min; Lu, Hongxing; Hu, Xiaogang; Zhu, Qiang
• Is Part Of: Scripta materialia. Number 220(2022)
• Publication Date: 2022-11
• Subjects: Semi-solid -- Yield stress -- Rheological parameter -- Flow-driven mode -- Numerical modeling; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2022.114932
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The rheological behavior of semi-solid slurry is systematically studied via three different testing modes under either shear stress or shear rate control mode. Then the non-Newtonian constitutive parameters, consistency coefficient k and power-law index n, are determined by using Power-Law (PL) and Herschel-Bulkley (HB) models. Results indicate that the viscosity curve from the shear stress control test is more suitable for the PL model fitting and numerical simulation. This investigation not only provides important insights into the rheological characteristics of slurry during semi-solid die casting but also offers a new modeling strategy for non-Newtonian fluid flow. Graphical abstract: Image, graphical abstract