Effect of oxygen on yield stress and slip plane in Nb, Nb-Ta and Nb-Mo single crystal

Eri Miura, Kyosuke Yoshimi, Shuji Hanada

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Effects of oxygen (O) on orientation dependence of critical resolved shear stress (c.r.s.s.) and of active slip plane in Nb, Nb-20Ta and Nb-20Mo single crystals were investigated by compression tests at 298 and 973 K. c.r.s.s. is remarkably increased by O addition. At 298 K, coarse wavy slip lines evidencing macroscopic cross slip are observed in the low O content alloy, while fine straight slip lines are observed in the high O content alloy. Observed slip planes of O-doped Nb and Nb alloys correspond nearly to maximum resolved shear stress planes (m.r.s.s.p.). Orientation dependence of c.r.s.s. is emphasized by O addition in Nb-20Ta at 298 K and in Nb-20Mo at 973 K. From these results, interaction between O atoms and screw dislocations is discussed.

本文言語English
ページ(範囲)365-368
ページ数4
ジャーナルMaterials Transactions, JIM
40
5
DOI
出版ステータスPublished - 1999 5

ASJC Scopus subject areas

  • 工学(全般)

フィンガープリント

「Effect of oxygen on yield stress and slip plane in Nb, Nb-Ta and Nb-Mo single crystal」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