Effect of Neodymium Content on Creep Properties of 9Cr-3Co-3W-Nd-B Steel

Tomoaki Hamaguchi, Masatoshi Mitsuhara, Hideto Kusuhara

研究成果: ジャーナルへの寄稿学術誌査読

抄録

The effects of the neodymium content on the creep properties and microstructures of 9Cr-3Co-3W-Nd-B steel were investigated. Neodymium had a mild effect on the creep rupture strength at contents up to 0.056 mass%. This suggested that the effects of neodymium compounds and solid-dissolved neodymium were minimal in the microstructures and uniformly creep-deformed parts after normalizing and tempering heat treatment. On the other hand, the reduction of area after creep rupture was improved by the addition of neodymium. Creep rupture occurred at the prior austenite grain boundaries on steel without neodymium. Therefore, neodymium conclusively adhered to the segregated sulfur at the prior austenite grain boundaries to suppress the formation of creep cracks.

本文言語英語
ページ(範囲)1548-1555
ページ数8
ジャーナルisij international
62
7
DOI
出版ステータス出版済み - 2022

!!!All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

フィンガープリント

「Effect of Neodymium Content on Creep Properties of 9Cr-3Co-3W-Nd-B Steel」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