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Fabrication of Ti-43Al-5V-4Nb intermetallic compounds by forging using the blended elemental powders

  • Yuyong Chen
  • , Yongjun Su
  • , Fantao Kong*
  • , Deliang Zhang
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • University of Waikato

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

Abstract

Ti-43Al-5V-4Nb (at.%) intermetallic compounds with fully lamellar structure were fabricated by forging method without canning using the blended elemental powders. The process route consisted of powder blending, compacting, sintering and final fabrication by hot forging. During sintering, there existed expansion, which is detrimental to forging process. In order to overcome the difficulty, two-step forging was introduced. The total reduction of two-step forging was up to 65%. Nearly fully lamellar structure of TiAl alloy was obtained. Overall, an optimized and potentially lower cost processing route could be identified.

Original languageEnglish
Title of host publicationAdvanced Design Technology
Pages796-799
Number of pages4
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 - Guangzhou, China
Duration: 16 Sep 201118 Sep 2011

Publication series

NameAdvanced Materials Research
Volume308-310
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011
Country/TerritoryChina
CityGuangzhou
Period16/09/1118/09/11

Keywords

  • Low cost
  • Powder metallurgy
  • TiAl
  • Two-step forging

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