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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Metastable liquid separation in undercooled Fe-Cu and Fe-Cu-Si melts containing a small B concentration and their solidification structure
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Metastable liquid separation in undercooled Fe-Cu and Fe-Cu-Si melts containing a small B concentration and their solidification structure

机译：B浓度低的过冷Fe-Cu和Fe-Cu-Si熔体中的亚稳态液体分离及其凝固结构

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摘要

Undercooling of various Fe-Cu-(Si) alloys with a small amount of B was examined. The temperature change during the static undercooling experiment was analyzed. The temperature curve showed significant undercooling. The melt was undercooled below the metastable liquid miscibility gap. In these samples, two melts separation was observed. The addition of B was effective for two melts separation. By rapid solidification of ternary Fe-Cu-B alloys, relatively uniform structure composed of iron rich droplets in copper rich matrix or copper rich droplets in iron rich matrix was formed depending on the composition. In the case of a rapidly solidified Fe-Cu-Si-B alloy, the egg-type structure was formed and some of the iron rich phase was amorphous.
机译：研究了各种含少量B的Fe-Cu-（Si）合金的过冷。分析了静态过冷实验期间的温度变化。温度曲线显示明显的过冷。熔体在亚稳液体混溶间隙以下过冷。在这些样品中，观察到两个熔体分离。 B的添加对于两次熔体分离是有效的。通过快速固化三元Fe-Cu-B合金，根据组成，形成了相对均匀的结构，该结构由富铜基体中的富铁液滴或富铁基体中的富铜液滴组成。在快速凝固的Fe-Cu-Si-B合金的情况下，形成了蛋型结构，并且一些富铁相为非晶态。

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