|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
||Effect of prestrain on tensile property of TiNif/Mg composite
||Chenri Jin, Suyuan Yang, Yuyang He, Dan Guo, Xingwang Cheng
|On-Site Speaker (Planned)
A TiNi shape memory alloy fiber reinforced AZ31 magnesium alloy matrix composite was fabricated by spark plasma sintering. Microstructure of the composite and effect of prestrain on strength enhancement were analyzed. Phase transformation of TiNi was observed in situ and the effect of temperature was involved. Results show that the interface between TiNi fiber and AZ31 matrix had a good combination. Strengthening effect of prestrain on yield stress of the composite at room temperature was more remarkable than 373 K and the effect decreased with increasing prestrain. Strengthening effect of prestrain on tensile strength of the composite was efficacious at both RT and 373 K. Due to the difference between recovery stress of TiNi and prestrain-caused compressive stress, the strengthening effect of increasing temperature was more significant than applying prestrain.