EFFECTS OF GRAPHITE MORPHOLOGY AND MATRICES ON FRACTURE BEHAVIOUR OF CAST IRONS

Acta Metall Sin

1994, Vol. 30

Issue (8): 374-379 DOI:

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EFFECTS OF GRAPHITE MORPHOLOGY AND MATRICES ON FRACTURE BEHAVIOUR OF CAST IRONS

JIANG Jianqing(Southeast University;Nanjing)

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JIANG Jianqing(Southeast University;Nanjing). EFFECTS OF GRAPHITE MORPHOLOGY AND MATRICES ON FRACTURE BEHAVIOUR OF CAST IRONS. Acta Metall Sin, 1994, 30(8): 374-379.

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Abstract The fracture behaviour of cast irons with graphite irregularity S＝0 and spheroidal graphite iron under three different stress modes was investigated．When the crack was parallel or vertical to the graphite flakes，it would be developed along inside the graphite flakes，i, e the cleavage of(0001) plane of graphite flakes，or propagated along the matrix/graphite interface，i, e decohension between graphite flake and matrix respectively．In the case of spheroidal graphite cast iron with ferrite-bainite matrix，the crack would propagate mainly in ferrite and secondary graphite.

Key words: Fe-C alloy flake graphite spheroidal graphite crack propagation cast iron

Received: 18 August 1994

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I8/374

1蒋建清．金属学报,1993;29:A4172蒋建清浙江大学硕士学位论文,19863蒋建清,舒光冀．钢铁研究学报,1993;5(2):534ChouJaw-Min,HonMin-Hsiung,LeeJye-logJMaterSci,1990;25:19655JiangJianqingJMaterSciLett,1993．12:1861

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