| SiC颗粒增强铝基复合材料的热变形本构方程及其优化 |
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| 引用本文： | 张鹏,李付国,李惠曲.SiC颗粒增强铝基复合材料的热变形本构方程及其优化[J].航空材料学报,2009,29(1):51-56. |
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| 作者姓名： | 张鹏 李付国 李惠曲 |
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| 作者单位： | 1. 西北工业大学,材料科学与工程学院,西安,710072
2. 北京航空材料研究院,北京,100095 |
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| 摘 要： | 通过热压缩试验研究了SiC颗粒增强铝基复合材料在应变速率为0.001～1s-1,变形温度为713～773K时的热成形性能,并在试验数据分析的基础上,引入Zener-Hollomon参数建立了用于描述复合材料高温变形行为的本构关系模型,通过分析比较和对本构方程的进一步优化,提高了颗粒增强型铝基复合材料本构方程的拟合精度,使得计算值更接近于试验值.
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| 关 键 词： | SiC颗粒增强铝基复合材料 本构方程 优化 |
Optimization of General Constitutive Equation for Hot Deformation of SiC Particle Reinforced Al Matrix Composites |
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| ZHANG Peng,LI Fu-guo,LI Hui-qu.Optimization of General Constitutive Equation for Hot Deformation of SiC Particle Reinforced Al Matrix Composites[J].Journal of Aeronautical Materials,2009,29(1):51-56. |
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| Authors: | ZHANG Peng LI Fu-guo LI Hui-qu |
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| Institution: | ZHANG Peng1,LI Fu-guo1,LI Hui-qu2 |
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| Abstract: | Deformation behavior of SiC particle reinforced Al matrix composites has been investigated through the hot compression test carried out in the temperature 713~773K and strain rate 0.001~1s-1.Based on the experimental data and Zener-Hollomon parameter,the constitutive equation is modeled and discussed.Through the analysis,the constitutive equation is further optimized.As a result,the new optimization equation can improve the validity of application. |
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| Keywords: | SiC particle reinforced Al matrix composites general constitutive equation optimization |
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