Abstract
The processing and thermomechanical behaviors of TiNi shape memory alloy (SMA) fiber-reinforced 6061 Al matrix smart composites are investigated experimentally and analytically. Optimum processing conditions of hot pressing temperature and pressure are identified. Composite yield stresses are observed to increase with an increase in the volume fraction of TiNi fiber and prestrain given to the composites. An analytical model for thermomechanical behavior of the composites is developed by utilizing an exponential type of SMA constitutive model. The model predicts an increase in the composite yield stress with an increase in prestrain. It is found that the key parameters affecting the composite yield stress are the fiber volume fraction, prestrain, and matrix heat treatment. The predictions are in a reasonably good agreement with the experimental results.
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Hamada, K., Lee, J.H., Mizuuchi, K. et al. Thermomechanical behavior of TiNi shape memory alloy fiber reinforced 6061 aluminum matrix composite. Metall Mater Trans A 29, 1127–1135 (1998). https://doi.org/10.1007/s11661-998-1022-0
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DOI: https://doi.org/10.1007/s11661-998-1022-0