Microstructure and Mechanical Properties of Quasicrystal Reinforced Magnesium Matrix Composites

Xu Dong Wang; Wen Bo Du; Zhao Hui Wang; Shu Bo Li

doi:10.4028/www.scientific.net/MSF.686.242

Paper Titles

Mechanical Properties and Microstructure of AZ31 Magnesium Alloy under Uni-Axial Tensile Loading
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Microstructure and Mechanical Properties of MgMnAlZnCu High Entropy Alloy Cooling in Three Conditions
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Microstructure and Mechanical Properties of Quasicrystal Reinforced Magnesium Matrix Composites
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Microstructure and Solidification Behavior of Permanent-Mould-Cast Mg-9Li-3Al-XSr Magnesium Alloy
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Microstructures and Mechanical Properties of AJ62 Magnesium Alloy with Y and Nd Elements
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Microstructures and Mechanical Properties of As-Cast and Extruded Mg-2wt.%Zn Alloy Containing Dilute Content of Misch Metal
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Microstructures and Mechanical Properties of Heat-Resistant High-Pressure Die-Cast Mg-4Al-6RE-0.3Mn (RE= La, Ce, Pr, Nd, Wt.%) Alloys
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HomeMaterials Science ForumMaterials Science Forum Vol. 686Microstructure and Mechanical Properties of...

Microstructure and Mechanical Properties of Quasicrystal Reinforced Magnesium Matrix Composites

Abstract:

Magnesium-based composites reinforced with stable icosahedral quasicrystal particles have been fabricated via Repeated Plastic Working (RPW) process. The microstructure of the composites has been investigated by XRD, SEM, TEM and HREM, and its mechanical properties have also been studied. The results showed that the RPW process could reduce the matrix grain size significantly, and the average grain size of matrix was only about 500 nm after 200 cycles of RPW. A good metallurgical bond interface between the quasicrystal particles and the Mg matrix was found. The composites exhibited the maximum yield strength of 265MPa and the maximum ultimate tensile strength of 309MPa at room temperature, respectively. The enhancement of mechanical properties is attributed to the strengthening effect of the quasicrystal particles and the fine-grain size of matrix.

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Materials Science Forum (Volume 686)

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242-246

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https://doi.org/10.4028/www.scientific.net/MSF.686.242

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Online since:

June 2011

Authors:

Xu Dong Wang, Wen Bo Du, Zhao Hui Wang, Shu Bo Li

Keywords:

Mg Matrix Composite, Quasicrystal, RPW Process

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