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中文摘要：
分别利用MTS-810试验机、杆-杆型冲击拉伸试验机（SHTB）和Instron-1195高温电子拉伸机对复合材料TP-650进行了准静态、动态及高温拉伸试验分析,研究温度和应变率耦合作用对TiC颗粒增强钛基复合材料TP-650力学性能的影响。研究表明,复合材料TP-650的性能优势可保持到高温,650℃时仍具有良好的综合力学性能;室温时,复合材料TP-650具有比基体高的强度和低的韧性;应变率低于1000s^-1时,复合材料TP-650呈现正的应变率敏感性。基于试验结果,利用双曲正弦形式修正的Arrhenius关系建立了TP-650的流变力学模型,给出了模型结果,与试验结果相吻合。
英文摘要：
Quasi-static,dynamic and high-temperature tension experiments for the composite TP-650 were carried out by MTS-810,bar-bar tensile impact apparatus （SHTB） and Instron-1195 machine,respectively. The coupling effects of temperature and strain rate on the mechanical properties of TiC particle reinforced titanium matrix composite TP-650 were investigated. The results show that the TP-650 composite has excellent mechanical properties at elevated temperatures,even at 650 oC. At room temperature,TP-650 composite has higher strength and lower toughness than the matrix. TP-650 composite shows positive strain rate sensitivity below the strain rate of 1000 s-1. Based on the experiment results,the rheological mechanics model of TP-650 composite was established with Arrhenius equation in the form of hyperbolic sine function,and the model prediction agreed with the experimental results.
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