[1] Huang Haibo, Li Fan,. Study on mechanical properties of composite materialsby in-situ tensile test [J]. Journal of Southeast University (English Edition), 2004, 20 (1): 49-52. [doi:10.3969/j.issn.1003-7985.2004.01.010]

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Study on mechanical properties of composite materialsby in-situ tensile test()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

20

Issue:

2004 1

Page:

49-52

Research Field:

Materials Sciences and Engineering

Publishing date:

2004-03-30

Info

Title:

Study on mechanical properties of composite materialsby in-situ tensile test

Author(s):

Huang Haibo;  Li Fan

Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China

Keywords:

Mg-Al matrix;  SiC fiber;  in-situ tensile test

PACS:

TG115.21+5.2;TG111.91

DOI:

10.3969/j.issn.1003-7985.2004.01.010

Abstract:

The mechanical properties of the SiC fiber-reinforced Mg-Al metal matrix composite materials have been studied on internal microstructure by SEM in-situ tensile test. The emergence and propagation of the crack, and the fracture behavior in materials have been observed and studied. It is found that in the case of the tensile test, the crack emerged in SiC fiber initially. In the case of the strong cohesion of the fiber-metal interface, the crack propagated in the fiber, meanwhile the fibers in the neighborhood of the cracked fiber began to crack and the Mg-Al metal deformed plastically, and at last the material fractured. Otherwise the toughness of the materials grows in the case of the lower cohesion of the fiber-metal matrix interface.

References:

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[8] Svoboda M, Pahutova M, Kucharova K, et al. The role of matrix microstructure in the creep behavior of discontinuous fiber-reinforced AZ91 magnesium alloy [J]. Materials Science and Engineering, 2002, A324(1, 2): 151-156.

Memo

Memo:

Biography: Huang Haibo(1958—), male, senior engineer, sem@seu.edu.cn.

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