Possible Effect of Co on Coarsening of M_<23>C_6 Carbide and Orowan Stress in a 9% Cr Steel

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概要

• 論文の詳細を見る

• It has long been known that a cobalt addition increases the resistance to tempering in steels. This may be due to the fact that Co raises the Curie-temperature which retards diffusion. In the present work the effect of Co on coarsening of M23C6 in the 9 % Cr steel P92 is studied by computer simulations. The results show that a final average radius of the carbides after 30 000 h at 600°C decreases with 30% with a Co addition of 10 mass%. This raises the Orowan stress with 30%. Moreover, it is assumed that slower particle coarsening also leads to a retarded coarsening of the martensite lath structure.

• 社団法人 日本鉄鋼協会の論文
• 2001-04-15

著者

• Agren John

  Materials Science And Engineering Royal Institute Of Technology

• GASTAFSON Asa

  Materials Science and Engineering, Royal Institute of Technology

• Gastafson Asa

  Materials Science And Engineering Royal Institute Of Technology

関連論文

• Possible Effect of Co on Coarsening of M_C_6 Carbide and Orowan Stress in a 9% Cr Steel

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