Dissimilar friction stir welding of F82H steel and austenite stainless steels without transformation
- Chung Y.D. and
- Fujii H.
- Chung Y.D. and
- Fujii H.
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The influence of tool and plate positions on the friction stir welding of F82H ferritic/martensitic steel (0.1%C, 8%Cr, 2%W, 0.2%V, 0.04%Ta) and austenitic stainless steels 304 and 316 was investigated. Stainless steel compositions were: 304 (0.08%C, 2%Mn, 1%Si, 18%Cr, 8%Ni) and 316 (0.059%C, 1.44%Cr, 0.92%Si, 16%Cr, 0.028%Ta, 12%Ni, 2.26%Mo). FSW was carried out using sheet of 1.5 mm thickness with F82H on the advancing or retreating side of the WC tool. The tool was plunged either into the F82H or into the stainless steel sheet. The microstructure, hardness, fracture strength, elongation and tensile strength of the butt joints were determined. The concentration profiles of chromium and nickel at the interface and the welded joints were also studied. Levels of diffusion of the elements in the welded joint and interface were determined.
8th International Symposium, 18-20 May 2010, Session 8B: Nickel and Stainless Steel, Paper 03
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