【摘要】 经过工艺性试验,提出了获得QT800—2铸态珠尤体球铁的成份和工艺,并研究了二者对其组织、性能的影响;另外,还对铸态QT800—2材质的断裂韧性KIc进行了测量和评价,采用俄歇电子探针分析揭示了铜、锡在球铁基体与石墨球界面的分布.更多还原

【Abstract】 The composition and technology for the production of QT800-2 as-cast pearlitic ductile iron were presented through the experiment in this paper. The effect of both above-mentioned factors on the structure and mechcni-cal properties of the ductile iron has been studied.The fracture toughness KiC of the cast iron has also been measured and evaluated.The distribu-tion of copper and Tin at the graphite/matrix interphase boundraies in the cast iron were dectected with the Auger electron microprobe.更多还原