Grain Refinement Performance of Al Cast Using Machining Chips

Yoshimi Watanabe; Kenichi Tabushi; Hisashi Sato; Eri Miura-Fujiwara

doi:10.4028/www.scientific.net/MSF.654-656.1444

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Microstructure and Mechanical Properties of a Friction Stir Processed Al-Zn-Mg-Cu Alloy
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Application of a Criterion for Cold Cracking to Casting High Strength Aluminium Alloys
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Observation of Hot Tear Formation by Acceleration Sensor
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Mechanical Properties and Metallurgical Qualities of High Aluminum Content Magnesium Alloys Fabricated by Twin-Roll Casting
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Fabrication of Porous Metals with Directional Pores through Unidirectional Solidification of Gas-Dissolved Melt
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The Effect of Constricting the Melt Flow on Mechanical Properties of High Pressure Die Castings
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HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Grain Refinement Performance of Al Cast Using...

Grain Refinement Performance of Al Cast Using Machining Chips

Abstract:

In this study, grain refinement performance of as-cast Al using machining chip of Al instead of the grain refiner is investigated. At first, the machining chips of pure Al are placed in metallic mold. Then, pure Al melt is inserted into the mold with the machining chips. From the microstructure of the as-cast Al using the machining chips, it is found that this machining chip in mold can induce grain refinement of as-cast Al. The increment of the Al chips enhances the grain refinement of the as-cast Al. Moreover, it is shown that preheating the mold can reduce the pore inside as-cast Al using the machining chips. This grain-refinement effect by the machining chips would come from the enhancement of cooling rate and the role of the nucleation site. Therefore, it is concluded that the machining chips of Al can enhance the grain refinement of as-cast Al.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

1444-1447

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.1444

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Online since:

June 2010

Authors:

Yoshimi Watanabe, Kenichi Tabushi, Hisashi Sato, Eri Miura-Fujiwara

Keywords:

Aluminum (Al), Cast, Grain Refiner, Machining Chip

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