根据各元素对共晶点实际碳量的影响，将这些元素的量折算成碳量的增减。以CE%表示碳当量。为简化计算一般只考虑硅、磷的影响或只考虑硅的影响。碳当量算式分别是CE%=C%+1/3(Si+P)%或CE%=C%+1/3Si%。
利用高碳当量灰铸铁组织强度试验数据，提出了一种基于支持向量机理论的灰铸铁强度预测模型。
On the basis of the experimental data of microstructure and strength for gray cast iron with high carbon equivalent, a model of support vector machine for gray cast iron prediction was established.
高碳当量灰铸铁具有良好的铸造性能，但提高强度是一个重要研究课题。
Grey cast iron with high carbon equivalent has excellent castability, but? It's? Difficult to get high strength.
设计了一种碳当量较高的抗热疲劳变质灰铸铁。
A modified grey cast iron with high carbon equivalent and with thermal fatigue resistant was designed.
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