| 稀土对Al-3Ti-0.2C细化剂显微组织及细化性能的影响 |
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| 引用本文： | 李苗,孔亚萍,管仁国,翁康荣,赵红亮.稀土对Al-3Ti-0.2C细化剂显微组织及细化性能的影响[J].铸造,2011,60(5). |
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| 作者姓名： | 李苗 孔亚萍 管仁国 翁康荣 赵红亮 |
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| 作者单位： | 1. 郑州大学材料科学与工程学院,河南,郑州,450002
2. 东北大学材料与冶金学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金重点项目，国家大学生创新性试验计划项目 |
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| 摘 要： | 采用海绵铁、石墨粉、混合稀土及工业纯铝制备了A1-3Ti-0.2C-IRE及AI-M-01C两种细化剂,并对工业纯铝进行了细化试验.利用X射线衍射仪(XRD)、带有能谱分析(EDS)的扫描电子显微镜(SEM)及光学显微镜((0m),对细化剂的相组成和显微组织及细化后的组织进行了研究.结果表明,与AI-M-01C相比,Al-3T1A2CA RE中Tic粒子的数量增多,TiAl3相的尺寸减小,并生成了Ti班1求e相.在细化剂的制备过程中,稀土元素富集在石墨颗粒周围,清除石墨颗粒与熔体界面上的氧化膜,促进了Tic粒子的合成.同时部分Ti2Al20Ce相与石墨反应也生成Tic粒子.在工业纯铝中分别添加0.4%的两种细化剂后,AI-M-0.2C使晶粒尺寸细化到151μm,而Al-3Ti-0.2C-1RE可将其细化到107μm.
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| 关 键 词： | Al-Ti-C 晶粒细化剂 稀土 细化性能 |
Effects of Rare Earth on Microstructure and Refining Performance of Al-3Ti-0.2C Refiner |
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| LI Miao,KONG Ya-ping,GUAN Ren-guo,WENG Kang-rong,ZHAO Hong-liang.Effects of Rare Earth on Microstructure and Refining Performance of Al-3Ti-0.2C Refiner[J].Foundry,2011,60(5). |
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| Authors: | LI Miao KONG Ya-ping GUAN Ren-guo WENG Kang-rong ZHAO Hong-liang |
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| Affiliation: | LI Miao1,KONG Ya-ping1,GUAN Ren-guo2,WENG Kang-rong1,ZHAO Hong-liang1(1.College of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450002,Henan,China,2.School of Materials and Metallurgy,Northeastern University,Shenyang 110004,Liaoning,China) |
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| Abstract: | Al-3Ti-0.2C-1RE and Al-3Ti-0.2C refiners were prepared using Ti sponge,graphite powder,mixed rare earths(RE)and commercial pure aluminium.And the refining experiments were taken by adding the refiner into the commercial pure aluminum.The phase composition and microstructure of the refiners and the microstructure of the samples after refinement were investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM)with X-ray energy-dispersive spectrum(EDS)and optical microscopy(OM).The results show tha... |
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| Keywords: | Al-Ti-C refiner rare earth refining performance |
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