Effects of alloying additions and material microstructure on the accuracy of the predictive law of creep crack growth for W-strengthened 9-12% Cr ferritic heat-resistant steel

Ryuji Sugiura, A. Toshimitsu Yokobori, Shinjyu Takamori, Masaaki Tabuchi, Akio Fuji, Mitsuo Yoda, Kenichi Kobayashi, Takeo Yokobori

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The life of creep crack growth for W-strengthened 9-12%Cr steel is sensitive to the alloying additions and to differences in material microstructure, such as lath martensitic structure and grain size caused by differences in cooling rates in the steel ingots during the manufacturing process, which results in the large scatter of experimental data from the law of creep crack growth life. In the present study, creep crack growth tests were conducted using W-strengthened 9-12%Cr steels with various contents of alloying additions and the dimensions of micro-nano structures, The effects of the composition of alloying additions and material microstructures on the life of creep crack growth for W-strengthened 9-12%Cr steel were clarified.

本文言語English
ページ(範囲)2928-2936
ページ数9
ジャーナルMaterials Transactions
48
11
DOI
出版ステータスPublished - 2007 11月
外部発表はい

ASJC Scopus subject areas

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

フィンガープリント

「Effects of alloying additions and material microstructure on the accuracy of the predictive law of creep crack growth for W-strengthened 9-12% Cr ferritic heat-resistant 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