Ultra-high-temperature deformation of polycrystalline and directionally solidified L12 intermetallic compound Ir3Nb

Y. F. Gu, Y. Yamabe-Mitarai, H. Harada

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The ultra-high-temperature deformation behaviors of polycrystalline (PC) and directionally solidified (DS) L12 intermetallic compound Ir3Nb have been investigated. The compression and compressive creep experiments were performed at temperatures from 1650 to 1800 °C at initial applied stresses from 49 to 200 MPa. The results show that the DS alloy has higher creep resistance and longer creep life than the PC alloy under above experimental conditions. The steady-state creep behavior of the DS alloy can be described in terms of power-law creep with the apparent stress exponent of 2.3 and activation energy of 295 kJ/mol. The creep mechanism is discussed in the light of the creep microstructure.

本文言語English
ページ(範囲)57-62
ページ数6
ジャーナルIntermetallics
11
1
DOI
出版ステータスPublished - 2003 1 1
外部発表はい

ASJC Scopus subject areas

  • Chemistry(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

フィンガープリント 「Ultra-high-temperature deformation of polycrystalline and directionally solidified L1<sub>2</sub> intermetallic compound Ir<sub>3</sub>Nb」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル