The main mechanisms of structure formation in zones of welded joints of unlike metals (steel – aluminum) obtained by friction stir welding in the mode of structural superplasticity are considered. Sheet billets of different steels (St3ps, 12Kh18N10T) and deformable aluminum alloys (AD1, AMg6) with a thickness of 3 mm are butt- and lap-welded by the friction stir technique. The microstructures, the phase components and the mechanical properties of the welded joints are determined.

中文翻译：

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通过搅拌摩擦焊接将钢连接到铝及其合金

考虑了在结构超塑性模式下通过搅拌摩擦焊获得的不同金属（钢-铝）的焊接接头区域中组织形成的主要机理。通过摩擦搅拌技术对不同厚度的钢（St3ps，12Kh18N10T）和可变形铝合金（AD1，AMg6）的板坯进行对接和搭接焊接。确定了焊接接头的微观结构，相成分和机械性能。