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Influences of Super-Gravity Field on Aluminum Grain Refining

文献类型：期刊论文

作者Zhao, Lixin2,3; Guo, Zhancheng1; Wang, Zhi4; Wang, Mingyong4
刊名METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
出版日期2010-03-01
卷号41A期号:3页码:670-675
关键词CENTRIFUGAL CASTING METHOD MICROSTRUCTURES GRAVITY AL
ISSN号1073-5623
通讯作者Guo, ZC
英文摘要The influence of a super-gravity field on metal grain refining has been mainly investigated using industrial pure aluminum as an example. The relationship between the super-gravity field (gravity coefficient of less than 1000) and the grain size in the equiaxed crystal zone was studied, and the corresponding mechanism for grain refining was discussed in detail. The effect of the super-gravity field on grain refining was remarkable, and the relationship could be well fitted by the second-decreasing-exponential function. For aluminum, the grain size decreased rapidly as the gravity coefficient increased from 1 to 250, and then remained nearly unchanged from 250 to 1000. Under the experimental conditions, the main mechanism was that the fragments of dendritic grains-generated by super-gravity-acted as the nucleation sites and resulted in grain refining. Further, the change of nucleation Gibbs free energy, directly caused by super-gravity, was not remarkable enough to refine the grains, which could be suggested by the stable freezing points under different super-gravity fields.
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]CENTRIFUGAL CASTING METHOD ; MICROSTRUCTURES ; GRAVITY ; AL
收录类别SCI
语种英语
WOS记录号WOS:000274687200019
公开日期2013-11-27
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/6207]  
专题过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位1.Univ Sci & Technol Beijing, Key Lab Ecol & Recycle Met, Beijing 100083, Peoples R China
2.Chinese Acad Sci, China Grad Univ, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Lixin,Guo, Zhancheng,Wang, Zhi,et al. Influences of Super-Gravity Field on Aluminum Grain Refining[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2010,41A(3):670-675.
APA Zhao, Lixin,Guo, Zhancheng,Wang, Zhi,&Wang, Mingyong.(2010).Influences of Super-Gravity Field on Aluminum Grain Refining.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,41A(3),670-675.
MLA Zhao, Lixin,et al."Influences of Super-Gravity Field on Aluminum Grain Refining".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 41A.3(2010):670-675.

入库方式： OAI收割

来源：过程工程研究所

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