| 组分特征对金属基复合材料拉,压性能的影响 |
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| 引用本文： | 李文芳,蒙继龙.组分特征对金属基复合材料拉,压性能的影响[J].华南理工大学学报(自然科学版),1994,22(2):106-115. |
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| 作者姓名： | 李文芳 蒙继龙 |
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| 作者单位： | 华南理工大学机械工程 |
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| 摘 要： | 利用等效夹杂理论和Ｈｉｌｌ的弱化约束理论研究了晶须增强金属基复合材料的拉、压力学性能，包括有效模量、屈服强度和塑性流动规律．定量研究了一些因素对材料性能的影响，包括热残余应变、晶须含量和长径比及组分性能等因素．着重研究了拉、压性能的不同以及对这一差别的预报方法，对２０％ＳｉＣｗ／Ａｌ材料拉、压性能的实验研究和对材料断口的ＳＥＭ观察，都证明了本文理论的合理性和有效性．
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| 关 键 词： | 晶须 金属复合材料 拉伸 压缩 |
EFFECT OF COMPONENT PROPERTIES ON THE TENSION AND COMPRESSION BEHAVIOURS OF METAL MATRIX COMPOSITE MATERIALS |
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| Li Wenfang, Meng Jilong,Wei Xingzhao.EFFECT OF COMPONENT PROPERTIES ON THE TENSION AND COMPRESSION BEHAVIOURS OF METAL MATRIX COMPOSITE MATERIALS[J].Journal of South China University of Technology(Natural Science Edition),1994,22(2):106-115. |
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| Authors: | Li Wenfang Meng Jilong Wei Xingzhao |
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| Abstract: | Equivalent inclusion theory and the weakening constraint theory of Hill are aimed at application to research the mechanical behaviours of misoriented Whisker/metal composite material(MMC),involving modulus,yielding strength and plastical flow rule under tension and compression.The influence of many factors on the effective properties are explored quantitatively,such as the residual thermo-strain,the volume fraCtion and aspects of whiskers and the properties of components.The difference between the behaviours of 20% SiCw/Al MMC under tension and compression and the fracture microcharacters are observed by SEM technique.This rationality and effectivity of the theory in this paper are confirmed. |
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| Keywords: | s:whiskers metallic composites tension compression components |
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