Microstructure and Mechanical Properties of AlN Particle Reinforced Mg-Al Matrix Composites with Different Particle Contents

Abstract:

In this paper, magnesium matrix composite with different AlN particles content were fabricated by powder metallurgy. The microstructure of composites was investigated by scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS) and transmission electron microscopy (TEM). The mechanical properties of composites were measured by electronic universal testing machine. The results show that the best densification and the highest mechanical properties of composites reached when the addition of 6wt.% reinforcement at 620 °C for 1 hour. Additionally, the compressive strength and bending strength of composites were 217.06 MPa and 207.40 MPa respectively, increased by 79.2% and 91.12% compared with matrix alloy, and the reinforcement particles uniformly distributed in the matrix alloy. It may be concluded that the strengthening mechanism of composites is mainly attributed to grain refinement, load transfer, and dislocation strengthening.

• Periodical: Materials Science Forum (Volume 913)
• Pages: 522-528
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.913.522
• Online since: February 2018
• Authors: Yong Wang, Kai Ming Cheng, Ji Xue Zhou*, Wei Hong Li, Jin Huan Xia
• Keywords: Mechanical Properties, Mg-Al Matrix Composite, Microstructure, Powder metallurgy, Strengthening Mechanism

References

[1] L.H. Wen, Z.S. Ji, M.L. Hu, H.Y. Ning. Microstructure and mechanical properties of Mg-3.0Nd-0.4Zn-0.4Zr magnesium alloy [J]. Journal of Magnesium and Alloys. 2(1) (2014) 85-91.

DOI: 10.1016/j.jma.2014.01.007

[2] J H Jun. Damping behaviors of as-cast and solution-treated AZ91-Ca magnesium Alloys [J]. Journal of Alloys and Compounds. (2014) 169-172.

DOI: 10.1016/j.jallcom.2014.04.214

[3] Tao Li, Yong He, Hailong Zhang, Xitao Wang. Microstructure, mechanical property and in vitro biocorrosion behavior of single-phase biodegradable Mg–1.5Zn–0.6Zr alloy [J]. Journal of Magnesium and Alloys. 2(2) (2014) 181-189.

DOI: 10.1016/j.jma.2014.05.006

[4] Zhang S J, Li W X, Yu K, et al. Grain refining technology of magnesium alloys [J]. Foundry. 50(7) (2001) 373-376.

[5] Y Zhang, M H Song, Yan Li, et al. Preparation and properties of AIN particles reinforced Cu-base composites [J]. Journal of Heilongjiang University of Science & Technology. 01 (2016) 48-52.

[6] Huang S J, Chen Z W. Grain refinement of AlNp/AZ91D magnesium metal-matrix composites [J]. KOVOVE MATERIALY-METALLIC MATERIALS. 49(4) (2011) 259-264.

DOI: 10.4149/km_2011_4_259

[7] Min Yang, Chao Qun Song, Xiu Zhong Liu, et al. Microstructure and Mechanical Properties of Al/AlN Surface Composite Fabricated via Multi-Pass Friction Stir Processing [J]. Applied Mechanics and Materials. (2014) 192-197.

DOI: 10.4028/www.scientific.net/amm.490-491.192

[8] Yong Qiang Wei, Tao Jiang, Ya Lin Zhu, et al. Thermal conductivity numerical simulation of Double-sized A1N Particle Reinforced Epoxy Composites [J]. China Plastics Industry. 02 (2014) 75-78.

[9] P T Li, Q T Hao. Research on preparation, re-melting and properties of AlN/ZL114 composite [J]. Hot Working Technology. 12 (2013) 127-130.

[10] Katsarou Lydia, Mounib Maher, Lefebvre, et al. Microstructure, mechanical properties and creep of magnesium alloy Elektron21 reinforced with AlN nanoparticles by ultrasound-assisted stirring [J]. Materials Science and Engineering A. (2016) 84-92.

DOI: 10.1016/j.msea.2016.02.042

[11] N M Kumara, S S Kumaranb, L A Kumaraswamidhasa. High temperature investigation on EDM process of Al2618 alloy reinforced with Si3N4, AlN and ZrB2 in-situ composites [J]. Journal of Alloys and Compounds. (2016) 755-768.

DOI: 10.1016/j.jallcom.2015.12.175

[12] S Sankaranarayanana, M K Habibib, S Jayalakshmiac, et al. Nano-AlN particle reinforced Mg composites: microstructural and mechanical properties [J]. Materials Science and Technology. 31(9) (2015) 1122-1131.

DOI: 10.1179/1743284714y.0000000686

[13] H.M. Fu.Grain refinement by AlN particles in Mg-Al based alloys [J]. J. Alloys Compd. 478(1-2) (2009) 809-812.

DOI: 10.1016/j.jallcom.2008.12.029

[14] Jain Jayant, Kar Ashish M, Upadhyaya Anish. Effect of YAG addition on sintering of P/M 316L and 434L stainless steels [J]. Mater. Lett. 58(14) (2004) 2037-(2040).

DOI: 10.1016/j.matlet.2003.12.022

[15] Asgharzadeh H, Simchi A. Supersolidus liquid phase sintering of Al6061/SiC metal matrix composites [J]. Powder. Metall. 52(1) (2009) 28-35.

DOI: 10.1179/174329008x286721

[16] J Chen, C G Bao, W H Chen, et al. Mechanical Properties and Fracture Behavior of AlNp/Mg-Al composites with Different Contents [J]. Materials Science & Technology. (2016).

DOI: 10.1016/j.jmst.2016.07.010

[17] Zhang Y K. The damping property of SiCw reinforced magnesium matrix composite [D]. Harbin Harbin Institute of Technology (2006).

[18] C J Wang, K K Deng, K B Nie, et al. Competition behavior of the strengthening effects in as-extruded AZ91 matrix: Influence of pre-existed Mg17Al12 phase [J]. Materials Science & Engineering A. 656 (2016) 102-110.

DOI: 10.1016/j.msea.2016.01.023

[19] Z T Wang, Y Q Yang, B C Li, et al. Effect of hot-deformation on microstructure and mechanical properties of AZ80 magnesium alloy [J]. Materials Science and Engineering A. (2013) 36-40.

DOI: 10.1016/j.msea.2013.06.018