NDLI: Development of inclusions in 3104 alloy melt during heating and holding treatments

Content Provider	Springer Nature Link
Author	Luo, Xiao xiong Zhang, Hai tao Han, Xing Guo, Shi jie Chen, Dan dan Cui, Jian zhong Nagaumi, Hiromi
Copyright Year	2016
Abstract	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$_{2}$O$_{3}$, spinel (MgAl$_{2}$O$_{4}$), and TiB$_{2}$ particles or thin films. It is found that some small particles of Al$_{2}$O$_{3}$ 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.
Starting Page	637
Ending Page	644
Page Count	8
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	23
Issue Number	6
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2016-06-03
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	aluminum alloys inclusions heating holding time settling Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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