非混相体系的冶金连接:纯Mg和纯Fe

H. Das, B. Gwalani, Xiaolong Ma, P. Upadhyay
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引用次数: 3

摘要

了解纯镁和纯铁的冶金接合性及其界面微观结构,是破解各种镁合金和钢在实际应用中的复杂接合机理的基础。利用搅拌摩擦辅助划线技术,首次成功地将纯Mg和纯Fe连接在一起形成了冶金键。通过详细的表征,我们发现这两种不混溶的金属由一个临界界面氧化层结合,该氧化层的跨度仅为~40±10 nm。我们使用高分辨率电子显微镜首次提出了富Mg/Fe氧化物界面层存在的直接实验证据,并讨论了氧化物形成对成功连接机制的贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Metallurgical Joining of Immiscible System: Pure Mg and Pure Fe
Understanding the metallurgical joinability of pure Mg and pure Fe and their interfacial microstructure lays the foundation for deciphering the complicated mechanism of joining various magnesium alloys and steels in applications. Pure Mg and pure Fe were successfully joined to form a metallurgical bond for the first time using the friction stir assisted scribe technique. Through detailed characterization, we found that the two immiscible metals are bonded by a critical interfacial oxide layer that spans only ~40 ± 10 nm. We present the first direct experimental evidence of the presence of a Mg/Fe oxide rich interfacial layer using high-resolution electron microscopy and discuss the contribution of oxide formation toward a successful joining mechanism.
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