Effect of additives on the viscosity of molten nickel base alloys

Yuzuru Sato, Koji Sugisawa, Daisuke Aoki, Masayoshi Hoshi, Jong Il Kim, Tsutomu Yamamura

研究成果: Conference contribution

抄録

Viscosity has been measured for various molten binary alloys of nickel with iron, cobalt and chromium in order to clarify the behavior of viscous flow of molten nickel alloys. The entire concentration range for iron and cobalt and 0-67at% of chromium content were studied. The measurement method was an oscillating cup viscometry using an alumina crucible that was precisely machined. The temperature was up to about 1880K for all the measurements. The results represented good Arrhenian relationship although some measurements included overcooled temperatures. The isothermal viscosities increased monotonously with an addition of iron and chromium into nickel. The addition of cobalt increased after stationariness. The isothermal viscosities showed concave curves. Activation energies increased monotonously by adding all the elements into nickel. These phenomena were considered to be related to the thermodynamic properties such as the heat of mixing and the structures of mixture melts.

本文言語English
ホスト出版物のタイトルYazawa International Symposium
ホスト出版物のサブタイトルMetallurgical and Materials Processing: Principles and Techologies; Materials Processing Fundamentals and New Technologies
編集者F. Kongoli, K. Itagaki, C. Yamauchi, H.Y. Sohn, F. Kongoli, K. Itagaki, C. Yamauchi, H.Y. Sohn
ページ417-423
ページ数7
出版ステータスPublished - 2003 10月 16
イベントYazawa International Symposium: Metallurgical and Materials Processing: Principles and Technologies; Materials Processing Fundamentals and New Technologies - San Diego, CA, United States
継続期間: 2003 3月 22003 3月 6

出版物シリーズ

名前Yazawa International Symposium: Metallurgical and Materials Processing: Principles and Techologies; Materials Processing Fundamentals and New Technologies
1

Other

OtherYazawa International Symposium: Metallurgical and Materials Processing: Principles and Technologies; Materials Processing Fundamentals and New Technologies
国/地域United States
CitySan Diego, CA
Period03/3/203/3/6

ASJC Scopus subject areas

  • 工学(全般)

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