NDLI: Characterization of the Grain Structures in Vacuum-Assist High-Pressure Die Casting AM60B Alloy

Content Provider	Springer Nature Link
Author	Li, Xiao Bo Xiong, Shou Mei Guo, Zhi Peng
Copyright Year	2016
Abstract	The structures in vacuum-assist high-pressure die casting (HPDC) AM60B alloy were studied by using an optical microscope and a scanning electron microscope with an energy dispersive spectrometer. It was found that the HPDC under the vacuum could significantly change the morphology and distribution of the microstructure. For both conventional and vacuum-assist HPDC processes, the externally solidified crystals (ESCs) tended to aggregate in the center along the thickness direction of the castings. Besides, the aggregation was more pronounced, and the number of ESCs decreased, and the ESCs tended to become smaller and more globular, as the distance between the specimen location and runner increased. Compared with the conventional castings, the vacuum-assist HPDC can significantly reduce the size and amount of ESCs, and the ESCs tended to be more globular. For the distribution of ESCs along the thickness of the specimens, the aggregation tendency was more pronounced in vacuum-assist die castings than that in conventional castings. Besides, the distribution of ESCs at different locations was more converged in the vacuum-assist HPDC than that in the conventional HPDC.
Starting Page	619
Ending Page	628
Page Count	10
File Format	PDF
ISSN	10067191
Journal	Acta Metallurgica Sinica (English Letters)
Volume Number	29
Issue Number	7
e-ISSN	21941289
Language	English
Publisher	The Chinese Society for Metals
Publisher Date	2016-05-23
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Spectroscopy/Spectrometry Tribology, Corrosion and Coatings Organometallic Chemistry AM60B alloy Externally solidified crystals Characterization and Evaluation of Materials Vacuum-assist high-pressure die casting Metallic Materials Grain structure Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Metals and Alloys

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