[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(
)
用原位拉伸研究复合材料的机械性能
)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
- 用原位拉伸研究复合材料的机械性能
- 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.
- 用扫描电镜原位拉伸的方法研究了碳化硅纤维增强镁铝复合材料的机械性能.通过对材料中裂纹的起源、扩展、断裂过程的观察研究, 发现在拉伸状态下, 裂纹最初起源于碳化硅纤维; 在碳化硅纤维与基体结合较强时, 裂纹首先在碳化硅纤维中扩展, 同时裂纹附近的碳化硅纤维亦开始产生微观裂纹、镁铝金属基体发生塑性变形, 最终断裂; 而在碳化硅纤维与基体结合较弱的状态下, 材料的韧性较高.
References:
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Memo
- Memo:
- Biography: Huang Haibo(1958—), male, senior engineer, sem@seu.edu.cn.