首页> 外文会议>Materials forum - aluminium alloys, their physical and mechanical properties - Volume 28 - 2004 >The Structure and Properties of Dispersion-Strengthened Mechanically-Alloyed Composite Materials Based on Aluminum Alloys
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The Structure and Properties of Dispersion-Strengthened Mechanically-Alloyed Composite Materials Based on Aluminum Alloys

机译:铝合金弥散强化机械合金复合材料的结构与性能

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摘要

At different stages of mechanical alloying, the structure and phase compositions ofrndispersion-strengthened composite materials of aluminum alloys based on the systemsrnAl–Si, Al–Cu, Al–Mg, Al–Zn–Mg–Cu, and Al–Si–Cu–Fe–Ni with aluminum oxide andrnsilicon carbide were studied by methods of OM, SEM, TEM, electron probe microanalysis,rnand X-ray diffraction. Efficient use of initially large matrix and strengthening ceramicrnparticles was first shown to be possible. Mechanically alloyed specimens had arnhomogeneous and disperse microstructure, a high hardness at room and elevatedrntemperature, and a low linear coefficient of thermal expansion.
机译:在机械合金化的不同阶段,基于Al–Si,Al–Cu,Al–Mg,Al–Zn–Mg–Cu和Al–Si–Cu–Al的体系的强化分散的铝合金复合材料的结构和相组成通过OM,SEM,TEM,电子探针显微分析,X射线衍射等方法研究了氧化铝和碳化硅中的Fe-Ni。最初证明有效使用最初的大型基体和增强陶瓷颗粒是可行的。机械合金化的试样具有均匀且分散的微观结构,在室温和高温下具有较高的硬度,并且线性膨胀系数低。

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