Consolidation of Ti powder by a compression rotation shearing system at room temperature-effect of pivot rotation speed on consolidation

N. Nakayama, S. Kato, H. Takeishi, H. Miki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Ti has high strength, good corrosion resistance, is lightweight and shows good biocompatibility. It has thus been used extensively for mechanical and medical structural components. On the other hand, the disadvantages of Ti include a high melting point, ease of oxidization at high temperatures, low specific heat and low thermal conductivity. There are three specific problems associated with Ti metallurgy. The first is that powder metallurgical processing requires high temperatures and a high vacuum, the second is that samples produced by existing powder metallurgy techniques have a low density, and the third is the occurrence of burning because of a local temperature rise during the cutting process. Therefore, in the present work, a new high-speed, room-temperature molding process involving compression rotation shearing was developed. This method can be used for solidification of metal powders by enforced plastic flow and breaking of oxide films. Therefore, no external heat is required and the molding time is short. The proposed method represents an easy approach to consolidating high melting point metallic materials.

Original languageEnglish
Title of host publicationTHERMEC 2011 Supplement
Pages3-8
Number of pages6
DOIs
Publication statusPublished - 2012
Event7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
Duration: 2011 Aug 12011 Aug 5

Publication series

NameAdvanced Materials Research
Volume409
ISSN (Print)1022-6680

Other

Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
CountryCanada
CityQuebec City, QC
Period11/8/111/8/5

Keywords

  • Material evaluation
  • Nonferrous metal
  • Plastic forming
  • Ti powder

ASJC Scopus subject areas

  • Engineering(all)

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