Strength and structure of heat resisting steels at high temperatures

Hideharu Nakashima

研究成果: ジャーナルへの寄稿学術誌査読

9 被引用数 (Scopus)

抄録

The heat resistant steel is a structural material for the high temperature of thermal power generation etc. As mechanical property for the heat resistant steel, high temperature strength should be high, and the rupture time be long. But, the structure of the steel remarkably change during long time creep deformation because diffusion easily occurs at the high temperature. Therefore, it is necessary to control the structural change during creep deformation to maintain strength for a long time at the high temperature. In this paper, at first the origin of high temperature strength of the heat resistant steel is described in view point of high-temperature deformation mechanism. Next, the grain boundaries in martensitic structure which are the fundamental structure of the heat resistant steel is described, and the change of these boundaries during creep deformation is described. The structure control of a further making of the heat resisting steel to high strength is described by using these findings.

本文言語英語
ページ(範囲)73-78
ページ数6
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
90
2
DOI
出版ステータス出版済み - 2月 2004

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学

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