Experimental and simulation investigation on thermal and mechanical properties for the hollow sphere reinforced AZ31 magnesium matrix composite

Abstract

The experimental and simulationn investigation on the thermal and mechanical properties for the hollow sphere reinforced AZ31 magnesium matrix composite were carried out in this paper. The Split-Hopkinson Pressure Bar and thermal conductivity experiments were used to obtain the mechanical and thermal properties of the composite. MgO coating was used on the surface of the hollow sphere in order to prevent the reaction between hollow spheres and magnesium alloy matrix. 40% volume fraction of the hollow sphere with 3.6 mm diameter and 0.185 wall thickness was proven to have the best performance on both thermal and mechanical properties.

Keywords:

• Mg matrix composites
• Hollow sphere
• FEM simulation
• Mechanical properties
• Heat conduction performance

Acknowledgments

The authors gratefully acknowledge support for this work from the Extracurricular academic research fund for College Students of Soochow University (Grant No. KY20210094A), the Basic Research Program of Jiangsu Province (Grant No. BK20190831) and the National Natural Science Foundation of China (Grant No. 51901148). We also want to thank the Metallic Materials Department of Shagang Steel and Iron School for providing facilities and support.

Declaration of competing interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Funding

The authors gratefully acknowledge support for this work from the Extracurricular academic research fund for College Students of Soochow University (Grant No. KY20210094A), the Basic Research Program of Jiangsu Province (Grant No. BK20190831) and the National Natural Science Foundation of China (Grant No. 51901148). We also want to thank the Metallic Materials Department of Shagang Steel and Iron School for providing facilities and support.