鑄鐵に及ぼすガスの影響 (III) : 鑄鐵の黒鉛化に及ぼすガスの影響第 3 報

概要

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The author has investigated the effects of contained gases, especially hydrogen and nitrogen, on graphitization of cast iron. The results obtained are as follows : - 1) Sand acts to promote graphitization, while FeO, N_2 and H_2 hinders it. 2) The more FeO exists, the more H_2 and N_2 show a tendency to increase. 3) The less combined carbon is, the less N_2 are tend to decrease. 4) If the amount of FeO contained decreases belew 0.03%, strength decreases and toughness increases. Sand shows an opposite tendency to FeO. 5) The more N_2 aud H_2 are contained, strength increases and toughness decreases. 6) The more Sand and H_2 are contained, the more flaky coarse graphite structure will increase. The more FeO and N_2 are contained, the more fine or abnormal graphite structure will increase.
社団法人日本鉄鋼協会の論文
1950-06-25