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在AlSiMgCuZr合金中的Zr对Al-TiB基谷物精炼器的影响

Dawid Kapinos¹, Bogusław Augustyn¹, Sonia Boczkal¹

¹Łukasiewicz Research Network-Institute of Non-Ferrous Metals, Light Metals Centre, Piłsudskiego 19, 32-050 Skawina, Poland.

Materials (Basel, Switzerland)

|July 12, 2025

概括

优化合金造,这项研究发现,减少持有时间和增加Al-5Ti-1B的添加有效地对抗合金造.

科学领域:

材料科学材料科学材料科学
金工业是金工业的一个方面.
造技术造技术造技术

背景情况:

合金从使用Al-Ti-B主合金的谷物精炼中受益.
(Zr) 是高强度合金中的一个关键合金元素.
痕迹Zr显著损害了Al-Ti-B谷物炼器的性能,这种现象被称为"Zr中毒".

研究的目的:

研究保持时间和Al-5Ti-1B添加对微观结构和特性的影响.
分析Zr对AlMgSi(Cu) 合金中的谷物提炼的影响.
确定最佳的造实践,以减轻Zr中毒.

主要方法:

造7英寸直流子,具有不同的持久时间和Al-5Ti-1B添加.
使用光学显微镜 (OM),扫描电子显微镜 (SEM) 和传输电子显微镜 (TEM) 的微结构特征.
分析颗粒大小,形态和元素分布 (SEM-EDS,STEM-EDS映射),并通过布林尔硬度测试进行补充.

主要成果:

缩短的保留时间和增加的Al-5Ti-1B添加提高了谷物提炼效率,尽管存在Zr.
最精细的粒度结构 (150-170微米) 通过在80ppm的连续粒度料中实现.
最均的硬度分布与优化谷物精炼相关.

结论:

优化造参数,特别是减少保留时间和控制的Al-5Ti-1B添加,可以减轻Zr中毒效应.
在80 ppm B下连续养Al-5Ti-1B是有效的,可以实现细粒和均的硬度.
这些发现提高了对Zr含合金中谷物提炼的理解和实际应用.

关键词:

这是AlSiMgCuZr合金.这是一个Zr中毒.合金是合金中的一种.谷物提炼谷物提炼

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