PINE CONE LIKE FRACTURE SURFACE AND TEMPER EMBRITTLEMENT OF 5. 5%Ni STEELS.

Masato Murakami, Koji Shibata, Kotobu Nagai, Toshio Fujita

研究成果: Article査読

抄録

Pine cone fracture surfaces were observed in Charpy and compact tension specimens of cryogenic Ni steels containing retained austenite. These steels, especially those bearing no molybdenum, were embrittled on slow cooling from final tempering. ″Pine cone″ is a kind of intergranular fracture surface produced by fracture along P segregated alpha prime / gamma interfaces which formed at prior austenitic grain boundaries. Intercritical heat treatment promoted austenite formation and suppressed fracture.

本文言語English
ページ(範囲)806-814
ページ数9
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
69
7
DOI
出版ステータスPublished - 1983

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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