Mechanical Analysis of Semi-Solid Metals Shear Deformation during Compression

Abstract:

Rheological behavior of semi-solid metals during isothermal compression is the most basic forming way for semi-solid die forging. In this paper, based on the metal plastic deformation and high pressure solidification theory, the shear deformation mechanisms of semi-solid metals were analyzed during isothermal compression. Experimental observations and theoretical analyses for AZ91D and composite Al/Al2O3 in the semi-solid state were performed with thermal simulation tests. The results for theoretical analyses and experimental observations show that the shear deformation of semi-solid metals has been realized by metal inhomogeneous flowing from macroscopic view and by grain boundary inhomogeneous migrating from microscopic view respectively during compression.

• Periodical: Solid State Phenomena (Volumes 141-143)
• Pages: 439-443
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.141-143.439
• Online since: July 2008
• Authors: Shou Jing Luo, Qiang Chen, Xiao Rong Gao
• Keywords: Compression Deformation, High Pressure Solidification, Mechanical Analysis, Shear Thinning

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