| 微量元素对稀土球铁的作用及其机制 |
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| 引用本文： | 张军,熊国庆,林汉同,丁永聪.微量元素对稀土球铁的作用及其机制[J].华中科技大学学报(自然科学版),1989(1). |
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| 作者姓名： | 张军 熊国庆 林汉同 丁永聪 |
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| 作者单位： | 华中理工大学机械工程二系
(张军，熊国庆，林汉同)，华中理工大学机械工程二系(丁永聪) |
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| 摘 要： | 本文系统地考察了Sb,Bi,Al,Sn,Pb等微量元素对稀土球铁组织与性能的影响;研究了它们对稀土球铁和镁球铁的不同作用及其机制;探讨了通过微量元素和碱土金属的多元复合匹配改善稀土球铁组织与性能的途径,并在此基础上研究了一种新型高强稀土球铁。
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| 关 键 词： | 微量元素 作用及机制 稀土铁球 组织和性能 |
The Role of Trace Elements in Rare-Earth-Treated Ductile Iron |
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| Zhang Jun Xiong Guoqing Lin Hantong Ding Yongcong.The Role of Trace Elements in Rare-Earth-Treated Ductile Iron[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1989(1). |
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| Authors: | Zhang Jun Xiong Guoqing Lin Hantong Ding Yongcong |
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| Institution: | Zhang Jun Xiong Guoqing Lin Hantong Ding Yongcong |
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| Abstract: | Investigations made on the effects of trace elements such as Sb, Bi, Al, Sn, Pb on the structures and mechanical properties of RE-treated ductile iron are reported. Different roles played by trace elements in RE- and Mg-treated ductile iron and the mechanism are studied. An approach to improving the structure and properties of RE-treated ductile iron by means of multi-component combination of trace elements with alkaline earth metals is proposed. A new kind of high strength RE ductile iron, a possible rival of ductile iron treated mainly with Mg, has been developed. |
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| Keywords: | Trace elements effects anb Mechanism RE-treated ductile iron Structure anb mechanical properties |
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