Development of inclusions in 3104 alloy melt during heating and holding treatments
查看参考文献18篇
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文摘
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Developments in the contents of different typical inclusions in 3104 alloy melt were described during heating and holding processing. The settling process of inclusion particles was investigated by measuring the contents of inclusions in the surface, center, and bottom layers of the molten metal. In the results, main inclusions observed and determined by Prefil and PoDFA methods are MgO, Al_2O_3, spinel(MgAl_2O_4), and TiB_2 particles or thin films. It is found that some small particles of Al_2O_3 and MgO are transformed into spinel particles, and the formation rate increases as the temperature and the holding period of melt increase. The content of inclusions increases from 3.37 mm~2×kg~(-1) to 7.54 mm~2×kg~(-1) and then decreases to 3.08 mm~2×kg~(–1) after holding for 90 min. This is attributed to a settling phenomenon and a significant increase in settling velocity after holding for 60 min. The content of inclusion particles decreases by means of settlement and flotation in liquid aluminum with an increase in holding time. The theoretical analysis and experiment results are in essential agreement with those from industrial production. |
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来源
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International Journal of Minerals
, Metallurgy and Materials,2016,23(6):637-644 【核心库】
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DOI
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10.1007/s12613-016-1276-2
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关键词
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aluminum alloys
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inclusions
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heating
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holding time
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settling
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地址
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1.
Northeastern University, MOE Key Laboratory of Electromagnetic Processing of Materials, Shenyang, 110819
2.
Suzhou Research Institute for Nonferrous Metals, Suzhou, 215026
3.
Chinalco Research Institute of Science and Technology, Beijing, 102209
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1674-4799 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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中国博士后科学基金
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the Postdoctoral Science Foundation of Northeastern University
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国家教育部高等学校博士学科点专项科研基金
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the Science and Technology Program of Guangzhou, China
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文献收藏号
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CSCD:5747196
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