| 物理模拟大断面球墨铸铁中异常石墨形态的观测 |
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| 引用本文： | 赵凌,杨弋涛,刘洋,邵光杰. 物理模拟大断面球墨铸铁中异常石墨形态的观测[J]. 铸造技术, 2006, 27(2): 111-114 |
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| 作者姓名： | 赵凌 杨弋涛 刘洋 邵光杰 |
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| 作者单位： | 上海大学材料科学与工程学院,上海,200072 |
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| 摘 要： | 使用自行研制的大断面铸件冷却模拟装置,研究了不同共晶时间球墨铸铁样品的石墨形态及相关的力学性能。验证了这一装置对于厚大断面球铁铸件研究的有效性。随着共晶时间的延长,铸件的石墨形态逐渐偏离球形,向异常化趋势发展,石墨颗粒的圆整度随之降低。异常石墨的形态表现出相互联结的立体网络状。
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| 关 键 词： | 大断面 球墨铸铁 冷却模拟 石墨形态 |
| 文章编号： | 1000-8365(2006)02-0111-04 |
| 收稿时间： | 2005-09-28 |
| 修稿时间： | 2005-12-14 |
Observation of Abnormal Graphite Shape in Ductile Iron with Heavy Section by Using Physical Simulation |
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| ZHAO Ling,YANG Yi-tao,LIU Yang,SHAO Guang-jie. Observation of Abnormal Graphite Shape in Ductile Iron with Heavy Section by Using Physical Simulation[J]. Foundry Technology, 2006, 27(2): 111-114 |
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| Authors: | ZHAO Ling YANG Yi-tao LIU Yang SHAO Guang-jie |
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| Affiliation: | School of Material Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | The graphite morphologies and the relevant mechanical properties of ductile iron sample with different eutectic times was studied by using the self-developed cooling apparatus for simulating the casting with heavy section.The validity of the apparatus to the research on the solidification behavior of ductile iron with heavy section was verified.As the eutectic time increases,the graphite morphology departs from sphericity to the abnormal morpholgy,and the roundness of the graphite particles decreases as well.The morphology of abnormal graphites has the three-dimensional interconnection netlike structure. |
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| Keywords: | Heavy section Ductile iron Cooling Simulation Graphite shape |
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