Effect of forging temperature on the microstructures and mechanical properties of the SiCp/AZ91 magnesium matrix composite

金属学报(英文版), 2010, 23(2): 99-105.

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

2.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

3.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

4.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

5.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

6.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

Effect of forging temperature on the microstructures and mechanical properties of the SiCp/AZ91 magnesium matrix composite

Kun WU ^1, , Kunkun DENG ^2, , Hai CHANG ^3, , Yewei WU ^4, , Xiaoshi HU ^5, , Mingyi ZHENG ^6,

1.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

2.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

3.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

4.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

5.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

6.School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China

Keywords： Magnesium matrix composite

In this paper, 10 ,vol. pet SiCp/AZ91 magnesium matrix composite was fabricated by stir casting technology. The ingots were forged at temperatures of 320, 370 and 420 ℃, respectively. XRD, OM and SEM were used to characterize microstructure of the composites. It was shown that the clusters of particles in the as-cast composite were largely eliminated, and that the tensile strength was improved obviously.

参考文献

[1]	A. LUO .Processing, Microstructure, and Mechanical Behavior of Cast Magnesium Metal Matrix Composites[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1995(9):2445-2455.
[2]	I. Sabirov;O. Kolednik;R. Z. Valiev .Equal channel angular pressing of metal matrix composites: Effect on particle distibution and fracture toughness[J].Acta materialia,2005(18):4919-4930.
[3]	X. J. Wang;K. Wu;H.F. Zhang;W.X. Huang;H. Chang;W.M. Gan;M.Y. Zheng;D.L. Peng .Effect of hot extrusion on the microstructure of a particulate reinforced magnesium matrix composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):78-84.

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