摘要
利用Gleeb-1500热模拟力学试验机对40%AlNp/LY12铝基复合材料进行高温压缩试验。研究表明,AlNp/LY12复合材料的高温压缩行为主要受变形温度、应变速率等的影响,其中以变形温度的影响最为显著;随变形温度的升高,变形抗力逐渐下降;随变形速率的增加,变形抗力呈上升趋势。在试验范围内,该复合材料高温压缩变形的最佳温度为500℃,且在应变速率为0.014 s-1时临界应变量最大。
40%-A1NdLY12 matrix composite was compressed at high temperature with Gleeb-1500 thermal mechanical simulation tester. The results show that the high-temperature compression behavior of A1NdLY12 composite is concern of some factors, such as deformation temperature and strain rate, in which the deformation temperature is most significant. With the deformation temperature increasing, the flow stress gradually decreases; and with the strain rate increasing, the flow stress exhibits an upward trend. During the trial, the optimum deformation temperature of the composite is 500℃, and the critical deformation should be the biggest under the strain rate of 0.014 s^-1.
出处
《热加工工艺》
CSCD
北大核心
2013年第14期86-89,共4页
Hot Working Technology
基金
国家自然科学基金资助项目(31170517
31070500)
关键词
复合材料
热压缩
变形行为
composite
hot compression
deformation behavior
