CREEP RUPTURE PROPERTIES OF Ni-Cr-W ALLOYS FOR NUCLEAR STEEL MAKING IN HELIUM AND REDUCING GAS ATMOSPHERES.

Tatsuhiko Tanabe, Tatsuo Shikama, Yoshikazu Sakai, Masakazu Fujitsuka, Hiroshi Araki, Heitaro Yoshida, Ryoji Watanabe

研究成果: Article査読

抄録

Creep rupture properties of alloys which precipitate alpha -W were investigated in the temperature range from 900 degree C to 1050 degree C in He environment which simulates the primary coolant of high temperature gas cooled reactor and at 900 degree C in a reducing gas environment to be used when direct steelmaking is connected with the primary HTGR. The results are discussed in terms of carburization, decarburization and oxidation. Two alloys have the possibility of a 50,000 h rupture strength of more than 1 kg/mm**2. Degradation of rupture strength in an alloy which has alpha -W as the main strengthener did not appear in spite of severe decarburization.

本文言語English
ページ(範囲)2045-2051
ページ数7
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
69
16
DOI
出版ステータスPublished - 1983 1 1

ASJC Scopus subject areas

  • 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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