| 球墨铸铁弹性模量与金相组织及抗拉强度关系的研究 |
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| 引用本文： | 杨长贺,陈美玲,高钦,郭可讱.球墨铸铁弹性模量与金相组织及抗拉强度关系的研究[J].大连理工大学学报,1987(4). |
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| 作者姓名： | 杨长贺 陈美玲 高钦 郭可讱 |
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| 作者单位： | 大连工学院材料工程系，大连工学院材料工程系，大连工学院材料工程系，大连工学院材料工程系 大连铁道学院工作 |
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| 摘 要： | 本文用动态敲击法对稀土镁球墨铸铁的弹性模量Ｅ值与金相组织及抗拉强度 值之间的关系进行了初步探讨。结果表明：基体组织对稀土镁球墨铸铁Ｅ值的影响 很小。在基体组织一定的情况下，稀土镁球墨铸铁存在一个临界球化率范围，当其 球化率 超过此范围后，则Ｅ值和 值随 值的提高而增力得十分缓慢；同时指出，Ｅ 值与 值间存在一定的函数关系。这些结果为合理应用球墨铸铁材料提供科学依据。
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| 关 键 词： | 球墨铸铁 弹性模量 抗张强度 显微组织(金相学)/球化率 动态敲击法 |
The Study on Relationship between Elastic Modulus and Structure as well as Tensile Strength for the Nodular Iron |
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| Yang Changhe,Chen Meiling,Gao Qin,Guo Keren.The Study on Relationship between Elastic Modulus and Structure as well as Tensile Strength for the Nodular Iron[J].Journal of Dalian University of Technology,1987(4). |
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| Authors: | Yang Changhe Chen Meiling Gao Qin Guo Keren |
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| Institution: | Department of Materials Engineering of DIT |
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| Abstract: | The quantitive relationship between elastic modulus and sphere rate of rare- earth magnesium nodular iron is shown. Furthermore, it indicates that a critical sphere rate exists in rare-earth magnesium nodular iron. When spheric grap- hite quantity is more than , both the elastic modulus and tensile strength are satisfied. That is the scientific basis, provided for applying dynamic knock me- thod and for measuring non-destructively the elastic modulus of cast iron to prac- tice foundry production. Finally, the quantitative relationship between elastic modulus and tensite streng- th of rare-earth magnesium nodular iron in certain conditions is clearly known. So, this paper provides the reliable data for scientifically selecting material of nodular iron. |
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| Keywords: | nodular iron modulus of elasticity tensile strength micro- structure(metallograph ) /sphere rate dynamic knock method |
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