| 稀土Ce和变形参数对SiCp/Al复合材料热变形的影响 |
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| 引用本文： | 邬富宝,李文学. 稀土Ce和变形参数对SiCp/Al复合材料热变形的影响[J]. 轻合金加工技术, 2012, 40(1): 51-54 |
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| 作者姓名： | 邬富宝 李文学 |
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| 作者单位： | 内蒙古科技大学材料与冶金学院,内蒙古包头,014010 |
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| 摘 要： | 制备了SiC质量分数为5％、8％,Ce质量分数为0.05％的SiCp/Al复合材料.利用Gleeble-1500热模拟试验机,在不同变形温度、变形速率下进行压缩试验,研究了稀土Ce对SiCp/Al复合材料热变形行为的影响.结果表明,SiC质量分数为8％的SiCp/Al复合材料在低温高应变速率条件下发生了动态再结晶.同样条件下,高应变速率的复合材料动态再结晶晶粒比低应变速率下的细小.稀土元素Ce对SiCp/Al复合材料具有明显的强化作用,并且稀土元素Ce能抑制复合材料的动态再结晶.
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| 关 键 词： | 稀土Ce 复合材料 热变形 动态再结晶 |
Effect of rare earth Ce and deformation parameters on hot-deformation of SiCp/Al composites |
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| WU Fu-bao , LI Wen-xue. Effect of rare earth Ce and deformation parameters on hot-deformation of SiCp/Al composites[J]. Light Alloy Fabrication Technology, 2012, 40(1): 51-54 |
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| Authors: | WU Fu-bao LI Wen-xue |
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| Affiliation: | (Material and Metallurgy School,Inner Mongolia University of Science and Technology,Baotou 014010,China) |
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| Abstract: | The SiCp/Al composites made both from(mass fraction)5% and 8% of SiC with 0.05% of Ce have been produced.The composites have been compressed on Gleeble-1500 thermal simulator with strain rates of 0.01 s-1 and 0.1 s-1 at 350℃ and 450℃ separately in order to study the effect of Ce on hot-deformation of SiCp/Al composites.The results show that SiCp/Al composite with 8% of SiC happened dynamic re-crystallization under low temperature and high strain rate.The re-crystal grains of the composites under high strain rates are finer than that obtained under lower strain rates with the same other conditions.Rare earth Ce can strongly strengthen the SiCp/Al composites and hinder the dynamic re-crystallization of the composite. |
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| Keywords: | rare earth Ce composites hot-deformation dynamic recrystallization |
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