通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化，经过孕育和球化处理，得到铁素体+珠光体+球状石墨的金相组织。
Adding different alloy combination of re, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
文中研究的是球状石墨铸钢新材料。
A new cast steel materials with spheroidal graphite has been studied.
通过试验分析，首次在灰铸铁型材断面上观察到球状石墨的带状区，并对这种带状组织及成因进行了分析探讨。
This paper analyses the band structure with nodular graphite that was first found on the cross section of the gray iron bar in the experiment.
研究了低碳球铁中球状石墨的内部结构及核心形状，探讨了核心形状对石墨球化的影响规律。
Most nuclei with spherical or near spherical shape can grow up into spherical graphite, while nuclei with no regular shape can hardly grow.
讨论了石墨的物理性能，分析了片状和球状石墨聚集状态对铸铁气割性的影响。
The influence of flake and spheroidal graphite on oxyacetylene cutting characteristic of cast iron has been analysed.
球墨铸铁是一种铁、碳、硅的合金，其中碳以球状游离石墨存在。
Ductile iron is the alloy of iron, carbon and silicon, of which carbon is in the form of spherical free graphite.
裂纹选择铁素体比例大的区域，穿过球状石墨间的基体桥，连接距离较近的球状石墨扩展。
The cracks tend to propagate in the area of high ferrite proportion through fracturing matrix Bridges among graphite nodules and linking up the close nodules.
结果表明，与包膜相比，溶媒合金内含有块状的未溶石墨和较多的球状再结晶石墨。
The results show that there exist chunk graphite and more globoid re-crystal graphite in the solvent metal than that in the film.
本文利用扫描电镜对深腐蚀蠕墨铸铁试样中的蠕虫状石墨及其与片状石墨、球状石墨之间的过渡形态进行了观察研究。
The paper investigated the vermicular graphite and its transition morphologies to lamellar and spheroidal graphite in deep-etched compacted vermicular iron bars by SEM.
研究了低碳球铁中球状石墨的内部结构及核心形状，探讨了核心形状对石墨球化的影响规律。
Through the study on both the internal structure and the nucleus shape in low carbon ductile iron, influencing regularity of the nucleus shape on the graphite spheroidization has been discussed.
第二阶段形成蠕虫状石墨，因包围球状石墨的奥氏体部分熔解，使它与熔液接触生长。
The CV graphite was formed in the second stage and grew in contact with the liquid due to partial dissolution of the austenite shell surrounding the graphite spheroid.
提供了非金属夹杂物作为球状石墨非自发形核心的视觉证实。
It is justified by the observed results that non-metallic inclusion can act as the heterogeneous nuclei of nodular graphite in this paper.
提供了非金属夹杂物作为球状石墨非自发形核心的视觉证实。
It is justified by the observed results that non-metallic inclusion can act as the heterogeneous nuclei of nodular graphite in this paper.
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