221 FSPによるZn-22Al共析合金の組織制御(加工による機能創製)

概要

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Friction stir welding (FSW) is a relatively new solid-state joining process primarily for aluminum alloys. FSW process can also be applied to the welding of a variety of other materials, including magnesium alloys, titanium alloys, stainless steels and metal matrix composites. In addition, FSW has been generating interest because of its association with friction stir processing (FSP), a new technique that essentially employs FSW tooling. FSP is being explored as a thermo-mechanical processing technique to transform a heterogeneous microstructure into a more homogenous microstructure. In this study, trials with FSP of superplastic alloys were carried out on a modified milling machine. The results of FSP on superplastic Zn-22Al alloy are discussed in terms of residual microstructure and the damping capacity.
社団法人日本機械学会の論文
2007-11-16