Investigation of Microstructure and Mechanical Properties of Friction Stir Lap Jointed Ni Base Superalloy

Kuk Hyun Song; Kazuhiro Nakata

doi:10.4028/www.scientific.net/MSF.724.481

Paper Titles

Synthesis of Al₂O₃/TiAl In Situ Composites from Ti-Al-TiO₂-Cr-V₂O₅
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The Effects of Catchment Materials and Treatment Train on Rainwater Quality in a Rainwater Harvesting System
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Influence of Addition of Waste Glass as a Fluxing Agent on the Bloating Phenomenon of Artificial Aggregates Fabricated from Coal Bottom Ash
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The Relationship between Viscosity and Electrical Conductivity of CaF₂-SiO₂-Al₂O₃-CaO-MgO Slag System
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Failure Analysis of ERW Seam Weld Pipeline in Internal Pressure
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Study on the Rheological Properties of LLDPE/CaCO₃ Plasticized with the Fatty Acid Extracted from Hogwash Oil
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The Behaviors of Removing Silver Ions by Low-Cost Expanded Rice Husk, Nature Diatomite and Nature Bentonite as Sorbents
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Investigation on Mechanical Properties and Formability of Cross Roll Rolled Ni-10Cr Alloy
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Investigation of Microstructure and Mechanical Properties of Friction Stir Lap Jointed Ni Base Superalloy
p.481

HomeMaterials Science ForumMaterials Science Forum Vol. 724Investigation of Microstructure and Mechanical...

Investigation of Microstructure and Mechanical Properties of Friction Stir Lap Jointed Ni Base Superalloy

Abstract:

This study evaluated the microstructure and mechanical properties of friction stir welded lap joints. Inconel 600 and SS 400 as experimental materials were selected, and friction stir welding was carried out at tool rotation speed of 200 rpm and welding speed of 100 mm/min. Applying the friction stir welding was notably effective to reduce the grain size of the stir zone, as a result, the average grain size of Inconel 600 was reduced from 20 μm in the base material to 8.5 μm in the stir zone. Joint interface between Inconel 600 and SS 400 showed a sound weld without voids and cracks. Also, the hook, along the Inconel 600 alloy from SS 400, was formed at advancing side, which directly affected an increase in peel strength. In this study, we systematically discussed the evolution on microstructure and mechanical properties of friction stir lap jointed Inconel 600 and SS 400.