Constitutive behavior of Csf/AZ91D composites compressed at elevated temperature and containing a small fraction of liquid
Source abstract
Abstract
Abstract Deformation behavior of 10 vol.% short carbon fiber reinforced AZ91D composite at the elevated temperature (596–696 K) and in the semi-solid state containing a small fraction of liquid (less than 10%) was investigated through compress test for the first time. The strain rate sensitivity and apparent activation energy in the semi-solid state are 0.2 and 392.3 kJ/mol respectively, which are higher than those in the elevated temperature. It is suggested that the presence of liquid phase causes the deformation behavior in the semi-solid state different from that at elevated temperature. The mechanical behavior of the composite can be characterized by the viscoplastic law in the elevated temperature. Considering the influence of liquid phase, a modified viscoplastic law was used to provide a unified description of the constitutive behaviors both at the elevated temperature and in the semi-solid state.
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Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Magnesium Alloys: Properties and Applications · Aluminum Alloy Microstructure Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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