Forming of tubes and bars of alumina/LY12 composites by liquid extrusion process

Le Hua Qi, He Jun Li, Pei Ling Cui, Zhong Ke Shi

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Tube and bar products of aluminum alloy composites reinforced by alumina short-fiber were formed in a single process with liquid extrusion technology. The microstructure verifies that the reinforcing effect is obvious in the deformation direction since fibers are distributed along this direction, which is resulted from the flow and crystallization under pressure of liquid metal and large plastic deformation of solidified metal in the process. The interface between fiber and matrix belongs to mechanical bonding. The fractograph demonstrates ductile mode. Liquid extrusion process opens up a new way for fabricating tube, bar and shaped products.

Original languageEnglish
Pages (from-to)803-808
Number of pages6
JournalTransactions of Nonferrous Metals Society of China (English Edition)
Volume13
Issue number4
StatePublished - Aug 2003

Keywords

  • Aluminum matrix composite
  • Liquid metal extrusion
  • Tube and bar

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