SUJ2の浸炭窒化処理後の窒素濃度分布予測(表面処理・腐食)

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概要

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• We have been investigating the nitrogen penetration mechanism carbonitriding into high carbon chromium bearing steel JIS-SUJ2 on carbonitriding processes. Assuming that the penetration mechanisms of nitrogen and carbon are the same, we developed a calculation method in order to estimate nitrogen concentration distribution profiles, which are based on our through experimental data. In our method, the dependencies on carbon activity, partial pressures of H_2 and undecomposed NH_3, and diffusion coefficient of nitrogen are taken into consideration. It was confirmed that the nitrogen concentration distribution profiles predicted by our method agreed well with the experiment results under various conditions. Hence, we deduce that our method is effective in a practical range on carbonitriding processes.

• 2007-03-01

著者

• 大木 力

  NTN(株)要素技術研究所

関連論文

• 浸炭窒化処理中の未分解NH_3分圧の炉内分布(表面処理・腐食)
• SUJ2の浸炭窒化処理後の窒素濃度分布予測(表面処理・腐食)
• SUJ2の浸炭窒化処理に及ぼす炭素の活量およびベースガス組成の影響(表面処理・腐食)

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