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Abstract：
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The influence of the thermomechanical parameters,such as deformation temperature,strain rate,reduction and so forth,on the mechanical behavior and grain size of SiCp/2014Al composite was investigated.The experimental results indicate that the flow stress of SiCp/2014Al composite is sensitive to deformation temperature and strain rate.An increment in deformation temperature 40℃ will lead to decrease in flow stress about 5～10MPa.The strain rate raising an order of magnitude results in increasing the flow stress approximately 1 3～1 8times.The high strain rate is conducive to obtaining the fine grain structure.The forging with appropriately large reduction and adequate increasing in cooling rate after forging are beneficial to the formation of fine grain structure also.The dependence of the flow stress of SiCp/2014Al composite on the thermomechanical parameters was first defined based on the experimental data.
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Funds：
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西安交通大学结构强度与振动国家重点实验室开发研究基金;;西安交通大学科学研究基金
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AuthorIntro：
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Reference：
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