自動車排出ガス浄化装置におけるオーステナイト系耐熱鋼の酸化寿命の推定

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タイトル別名
  • Estimation of Oxidation Life of Austenitic Heat Resisting Steels for Automobile Exhaust Emission Control Equipment
  • ジドウシャ ハイシュツ ガス ジョウカ ソウチ ニ オケル オーステナイトケイ

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抄録

To select the materials suitable for exhaust emission control equipment of automobile, a method to estimate the oxidation life of the equipment has been investigated.<BR>Cyclic oxidation tests in air using the specimens of austenitic heat resisting steels have been carried out, and the standard oxidation-loss curves which express the relations among heating time, temperature and oxidation thickness loss of specimen were obtained.<BR>The oxidation thickness losses of the equipment through practical vehicle tests were compared with the ones calculated using the standard oxidation-loss curves. The oxidation losses through practical vehicle tests were about 2.7 times as much as the calculated values for SUS 304 and about 0.8 times for AISI 302B. Since these ratios are almost independent of driving condition, it is possible to estimate the oxidation life of the equipment by the standard oxidatioa-loss curves.

収録刊行物

  • 鉄と鋼

    鉄と鋼 65 (7), 772-778, 1979

    一般社団法人 日本鉄鋼協会

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