9% Ni鋳鋼の内部われとSの粒界偏析

書誌事項

タイトル別名
  • The Relationship between Internal Cracking and the Austenite Grain Boundary Segregation of Sulfur Atoms in 9% Ni Cast Steels
  • 9パーセントNi チュウコウ ノ ナイブワレ ト S ノ リュウカイ ヘンセキ

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抄録

The effect of austenite grain boundary segregation of S atoms on internal cracking in 9% Ni cast steels has been studied mainly by means of Ion Microprobe Mass Analyzer (IMMA).<BR>Internal cracks originate at the austenite grain boundaries which are also primary dendrite interfaces. Internal cracking, however, is not due to the formation of the grain boundary layers of low melting point substance, but arises from the decrease in grain boundary cohesion by S segregation. The segregation of S atoms is largely reduced by Mo addition and such an effect of Mo addition has also been discussed.

収録刊行物

  • 鉄と鋼

    鉄と鋼 73 (1), 191-198, 1987

    一般社団法人 日本鉄鋼協会

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