Processing, microstructure and mechanical properties of Al-based metal matrix composites reinforced with mechanically alloyed particles

被引：0
|
作者：
A. K. Chaubey
S. Scudino
N. K. Mukhopadhyay
J. Eckert
机构：
[1] Institute of Minerals and Materials Technology (IMMT),IFW Dresden
[2] Institut für Komplexe Materialien,Department of Metallurgical Engineering
[3] Indian Institute of Technology (BHU),Erich Schmid Institute of Materials Science
[4] Austrian Academy of Sciences,Department Materials Physics
[5] Montanuniversität Leoben,undefined
来源：
Journal of Materials Research | 2016年 / 31卷
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摘要：
Al-based composites reinforced with Mg-7.4%Al mechanically alloyed particles have been synthesized by hot pressing followed by hot extrusion. Microstructural characterization of the bulk samples reveals the phase transformation of the reinforced particles (Mg(Al)ss + γ-Al12Mg17) to the stable intermetallic β-Al3Mg2 phase which occurs during consolidation. The phase transformation leads to the increase of effective volume faction of the reinforcement along with strong interfacial bonding, which causes a significant increase of the strength of the composites retaining appreciable plastic deformation. The strengthening can be attributed to the reduction of ligament size and to the interface strengthening due to better interface bonding (load-transfer) between the Al-matrix and the reinforcing particles.
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页码：1229 / 1236
页数：7
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