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Shape Memory Effect of TiNi Short Fiber on Mechanical Properties of TiNi/Al6061 Composite
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<div class="htmlview paragraph">A composite of an aluminum matrix reinforced by short TiNi shape memory alloy (SMA) fibers was fabricated. The processing and thermomechanical behaviors of the composite TiNi/Al6061 were investigated experimentally and analytically. Optimal hot-pressing conditions of TiNi/Al6061 processing were identified. The shape memory effect (SME) was activated by prestraining the composite at the temperature between M<sub>s</sub> and A<sub>s</sub>, followed by heating up to A<sub>f</sub>. SME on mechanical properties, such as microhardness, yield stresses of the composite, were investigated. A computational model for the strengthening mechanism of the short fiber metal matrix composite was utilized to analyze SME on yield stress of the composite. Yield stress of the composite as a function of prestrain was predicted numerically and verified experimentally.</div>
Title: Shape Memory Effect of TiNi Short Fiber on Mechanical Properties of TiNi/Al6061 Composite
Description:
<div class="htmlview paragraph">A composite of an aluminum matrix reinforced by short TiNi shape memory alloy (SMA) fibers was fabricated.
The processing and thermomechanical behaviors of the composite TiNi/Al6061 were investigated experimentally and analytically.
Optimal hot-pressing conditions of TiNi/Al6061 processing were identified.
The shape memory effect (SME) was activated by prestraining the composite at the temperature between M<sub>s</sub> and A<sub>s</sub>, followed by heating up to A<sub>f</sub>.
SME on mechanical properties, such as microhardness, yield stresses of the composite, were investigated.
A computational model for the strengthening mechanism of the short fiber metal matrix composite was utilized to analyze SME on yield stress of the composite.
Yield stress of the composite as a function of prestrain was predicted numerically and verified experimentally.
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