Investigation on friction stir welding of hybrid composites fabricated on Al–Zn–Mg–Cu alloy through friction stir processing

• DOI: 10.1016/j.jmrt.2019.06.033
• Publication Date: 2019-07-06T00:47:53Z
• Authors: Namrata Gangil; Sachin Maheshwari; Arshad Noor Siddi...; Mustufa Haider Abidi; Mohammed A. El-Me...; Jabair Ali Mohammed
• Keywords: Friction Stir Welding; Friction Stir Processing; Base metal; Penetration (warfare)

This study presents microstructural and mechanical investigation on friction stir welding of composites fabricated through processing a high strength Al–Zn–Mg–Cu alloy by utilizing hybrid reinforcement. Surface (SCs) were via FSP, sliced to the processed thickness cut-apart longitudinal axis SCs. They subsequently; butt welded employing varied tool rpm (560–900 rpm). The properties, analysis micro-hardness profile was obtained for welds. Results revealed that in comparison SC samples reinforcement particle distribution became more homogeneous due weld pass. In SCed sampled found be enhanced evenly distributed samples. examination indicated minute tunneling defect introduced at 560 900 whereas incomplete root penetration (IRP) observed all ultimate tensile (UTS) lower than base metal which attributed presence tunnel IRP.