<p>Pore defects in wire-arc additively manufactured (WAAM) aluminum alloy components limit industrial adoption, especially for pressure-bearing parts. Friction stir processing (FSP) applies severe plastic deformation to restructure the microstructure, simultaneously refining grains and eliminating pores. Here, AA5356 WAAM thin-wall samples were characterized before and after FSP; the resulting microstructures and mechanical properties confirm an efficient pore-free grain-refinement route. The approach is readily transferable to other aluminum, magnesium and titanium alloys processed by additive manufacturing or arc welding.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Improve the Porosity and Mechanical Properties of Wire Arc Additive Manufacturing AA5356 by Friction Stir Processing

  • Xiaolei Zhu,
  • Xiaofeng Lu,
  • Jian Wang

摘要

Pore defects in wire-arc additively manufactured (WAAM) aluminum alloy components limit industrial adoption, especially for pressure-bearing parts. Friction stir processing (FSP) applies severe plastic deformation to restructure the microstructure, simultaneously refining grains and eliminating pores. Here, AA5356 WAAM thin-wall samples were characterized before and after FSP; the resulting microstructures and mechanical properties confirm an efficient pore-free grain-refinement route. The approach is readily transferable to other aluminum, magnesium and titanium alloys processed by additive manufacturing or arc welding.