Elemental blended powder semisolid forming on Ti-Al alloy

K. Yasue, G. L. Yu, M. Niinomi

Research output: Contribution to conferencePaperpeer-review

Abstract

Semisolid forming by the COMPASS method are tested on a Ti-6%Al alloy, and the effects of the forming pressure, temperature, pressure holding time and grain size of titanium powders on the density are discussed. The blended powders which are prepared by mixing both powders of titanium and aluminium are poured in a metal mold, and heated to approximately the melting point of aluminum. Thereafter, the forming pressure is loaded and held for the prescribed time. The green compacts are heat-treated for alloying at 1473K. Pores in the green compacts are not observed under all the forming condition. However, the pressure holding time has a considerable influence on the density of samples after the heat-treating. The micro-pores and intermetallic compound were observed on the alloyed sample for the short pressure holding time, but these faults gradually disappear as the pressure holding time increases.

Original languageEnglish
Pages81-88
Number of pages8
Publication statusPublished - 1998 Jan 1
EventProceedings of the 1998 TMS Annual Meeting - San Antonio, TX, USA
Duration: 1998 Feb 161998 Feb 19

Other

OtherProceedings of the 1998 TMS Annual Meeting
CitySan Antonio, TX, USA
Period98/2/1698/2/19

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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