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首页> 外文会议>World foundry congress on fonderie sans frontieres casting without borders giessen ohne grenzen >INFLUENCE OF MINOR ELEMENTS ON PROPERTIES OF PURE FE-C-SI CAST IRON
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INFLUENCE OF MINOR ELEMENTS ON PROPERTIES OF PURE FE-C-SI CAST IRON

机译：次要元素对纯Fe-C-Si铸铁性能的影响

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Using pure Fe-C-Si alloys, we evaluated the influence of minor elements such as Ti, N, P and S on the microstructure and the tensile properties of cast iron. The pure Fe-C-Si samples were prepared from electrolytic iron, semiconductor grade silicon and electrode graphite. As for the standard, we prepared the commercial grade cast iron (abbreviated to C. G. iron). The experimental results are as follows; 1) The graphite morphology of the pure Fe-C-Si irons is straight, thin and long but changes to curved, branched, thick and short on S addition. The graphite morphology of the C.G. iron is much more curved, thick and short than the S-added Fe-C-Si irons. 2) The as cast matrix structure of the pure samples is fully pearlite, but there is a small amount of ferrite in the matrix of the C.G. iron. 3) The C.G. samples are superior in tensile properties to the pure Fe-C-Si samples not only the annealed material but also the as cast samples. These results show that the minor elements, such as S and Ti, improve the tensile properties by modification of the graphite morphology.
机译：使用纯Fe-C-Si合金，我们评估了少量元素如Ti，N，P和S在铸铁的微观结构和拉伸性质的影响。由电解铁，半导体级硅和电极石墨制备纯Fe-C-Si样品。至于标准，我们制备了商业级铸铁（缩写为C.铁）。实验结果如下; 1）纯Fe-C-Si铁的石墨形态是直的，薄而薄的，但弯曲，分支，厚和短路的变化。 C.G的石墨形态。铁比S添加的Fe-C-Si铁熨烫得多。 2）作为纯样品的铸造基质结构是完全珠光体，但是C.G的基质中存在少量铁氧体。铁。 3）C.G.样品在纯Fe-C-Si样品中的拉伸性质优于纯Fe-C-Si样品，而不是退火材料，而且是作为铸造样品。这些结果表明，通过改变石墨形态，改善了S和Ti等次要元素。

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