EFFECT OF STRUCTURE IN WHITE IRON ON GRAPHITIZATION OF MALLEABLE CAST IRON

Acta Metall Sin

1989, Vol. 25

Issue (2): 128-132 DOI:

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EFFECT OF STRUCTURE IN WHITE IRON ON GRAPHITIZATION OF MALLEABLE CAST IRON

ZHANG Xijun;CHEN Yongmin Kunming Institute of Technology

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ZHANG Xijun;CHEN Yongmin Kunming Institute of Technology. EFFECT OF STRUCTURE IN WHITE IRON ON GRAPHITIZATION OF MALLEABLE CAST IRON. Acta Metall Sin, 1989, 25(2): 128-132.

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Abstract The structure of white iron treated with Si-Bi-Al complex inoculanthas been observed by means of SEM and TEM. The results show that, in compari-son with the samples treated with ordinary inoculants, disorder, overlapping andinflexion of the pearlitic lamella appear, besides, the dislocation density increasesapparently. The graphitization can be quickly realized at the temperature lower thanthat of austenitic transition (720℃)

Key words: malleable cast iron dislocation graphitization

Received: 18 February 1989

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1989/V25/I2/128

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