Ti-based quasicrystal layers produced by plasma thermal spraying

Akito Takasaki, Susumu Uematsu, K. F. Kelton

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Ti45Zr38Ni17 powders were thermally sprayed onto mild steel substrates in air and under a reduced pressure of argon. Two kinds of powder samples were used in this study. For one type the elemental powders were gently (manually) mixed in a vial, and for the other type they were mechanically alloyed by a planetary ball mill. Several kinds of oxides were formed after thermally-spraying the mechanically-alloyed powders in air. After spraying in a reduced pressure of argon, on the other hand, the coating layers obtained from the gently mixed powders consisted of the three elemental metals (Ti, Zr, Ni), but an amorphous phase primarily appeared in the thermallysprayed mechanically-alloyed powders. This amorphous phase transformed into the icosahedral quasicrystal phase and a minor Ti2Ni-type crystal phase after annealing in vacuum at 828 K. The Vickers hardness and the contact angle with pure water for the quasicrystal layers were about 7 GPa and 92° respectively.

本文言語English
ホスト出版物のタイトルProgress in Powder Metallurgy - Proceedings of the 2006 Powder Metallurgy World Congress and Exhibition (PM 2006)
出版社Trans Tech Publications Ltd
ページ449-452
ページ数4
PART 1
ISBN(印刷版)0878494197, 9780878494194
DOI
出版ステータスPublished - 2007
イベント2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan, Korea, Republic of
継続期間: 2006 9 242006 9 28

出版物シリーズ

名前Materials Science Forum
番号PART 1
534-536
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Conference

Conference2006 Powder Metallurgy World Congress and Exhibition, PM 2006
国/地域Korea, Republic of
CityBusan
Period06/9/2406/9/28

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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