| Researches on Mischmetal Preventing Lead Segregation in High Lead Bronze |
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| 引用本文： | 李道韫,徐连棠,战松江,付念新. Researches on Mischmetal Preventing Lead Segregation in High Lead Bronze[J]. 中国稀土学报(英文版), 1991, 0(2) |
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| 作者姓名： | 李道韫 徐连棠 战松江 付念新 |
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| 作者单位： | Department of Metallic Materials Engineering Jilin University of Technology，Changchun 130025，China，Department of Metallic Materials Engineering，Jilin University of Technology，Changchun 130025，China，Department of Metallic Materials Engineering，Jilin University of Technology，Changchun 130025，China，Department of Metallic Materials Engineering，Shenyang University of Technology |
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| 摘 要： | The effect of mischmetal addition on lead segregation in high lead bronze(grade ZQPb25-5)is studied inthis paper.The testing results confirm that 0.5 to 1.0% misehmetal addition can effectively prevent lead fromgravity and inverse segregation.The results of preventing lead from segregation respectively by mischmetal andnickel are also compared in the paper.The mischmetal addition in high lead bronze is distributed in the coppermatrix mainly in the form of a compound which promotes early precipitation and refinement of α-dendrites,thus restraining the Pb-rich melt from either sinking to the bottom or escaping to the surface layer of thecasting.As a result,the tendency of lead segregation is significantly decreased.Proper addition of mischmetalcan also improve the mechanical properties,especially the ductility of high lead bronze.In addition,the contentsof tin in high lead bronze can partially be substituted by mischmetal addition.
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Researches on Mischmetal Preventing Lead Segregation in High Lead Bronze |
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| Li Dao-Yun Xu Lian-Tang Zhan Shong-Jiang. Researches on Mischmetal Preventing Lead Segregation in High Lead Bronze[J]. Journal of Rare Earths, 1991, 0(2) |
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| Authors: | Li Dao-Yun Xu Lian-Tang Zhan Shong-Jiang |
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| Abstract: | |
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| Keywords: | High lead bronze Segregation Mischmetal |
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