Simple manufacturing method for A7075 aluminum alloy slurry with fine granules and application to rheo-extrusion

Y. Uetani*, R. Nagata, H. Takagi, K. Matsuda, S. Ikeno

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Semi-solid slurry of A7075 aluminum alloy with fine solid granules was tried simply to make by passing the melt through upright tube followed by inclined water-cooled tube. Structures of solidified slurries were granular and mean grain sizes of about 0.06 to 0.11mm could be obtained. When the slurries introduced into an extrusion container kept at semi-solid temperature 873K were extruded to round bars at various extrusion ratios and press ram speed of 10mm/s, just after cooling to 833K, they could easily be extruded to bars with smooth surfaces at lower forces. Although every tensile strength of extruded bars were lower than that of hot-extruded one, there was a tendency that finer the solid granules in slurry, higher the tensile strength of extruded bar.

Original languageEnglish
Title of host publicationSemi-Solid Processing of Alloys and Composites - Proceedings of the 9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006
PublisherTrans Tech Publications Ltd
Pages746-749
Number of pages4
ISBN (Print)3908451264, 9783908451266
DOIs
StatePublished - 2006
Event9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006 - Busan, Korea, Republic of
Duration: 2006/09/112006/09/13

Publication series

NameSolid State Phenomena
Volume116-117
ISSN (Print)1012-0394

Conference

Conference9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006
Country/TerritoryKorea, Republic of
CityBusan
Period2006/09/112006/09/13

Keywords

  • A7075 aluminum alloy
  • Cooling tube
  • Extrudability
  • Fine solid granule
  • Rheoextrusion
  • Semi-solid slurry
  • Tensile property

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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