The Paton Welding Journal, 2003, №10

2003 №10 (30)

2003 №10 (32)

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The Paton Welding Journal, 2003, #10-11, 192-198 pages

Feasibility study of metallurgical and mechanical properties of friction stir welded stainless steels

K. Okamoto¹, S. Hirano¹, M. Inagaki¹, S.H.C. Park², Yu.S. Sato², H. Kokawa²

¹Hitachi Research Laboratory, Hitachi Ltd., Japan
²Department of Materials Processing, Tohoku University, Sendai, Japan

Abstract
Friction stir welding has been remarkably applied as innovative production methods for several industrial sectors because of the advantages to the technique. However, the commercial benefits are still limited to light metals, such as aluminum, magnesium and copper alloys. In this paper, the feasibility studies of mechanical and metallurgical properties of friction stir welded stainless steel thin plate and thick plate have been studied. Single-pass bead on plate and butt weldments in the commercial austenitic stainless steel were successfully achieved. The joints were evaluated by microscopy and hardness tests of the transverse cross section and transverse tensile tests. Temperature hysteresis of the workpiece during the process was also measured.
Keywords: friction stir welding, austenitic stainless steel, microstructure, hardness, tensile strength, welding temperature

References

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6. Andersson, C.G., Andrews, R.E., Dance, B.G.I. et al. (2000) A comparison of copper canister fabrication by the electron beam and friction stir process. In: Proc. of 2nd Int. Symp. on FSW, Gothenburg, Sweden, June 26-28, 2000.
7. Okamoto, K., Doi, M., Hirano, S. et al. (2001) Fabrication of backing /lates of copper alloy by friction stir welding. In: Proc. o Jrd Int. Symp. on FSW, Kobe, Japan, Sept. 27-28, 2001.
8. Sorensen, C.D., Nelson, T.W., Packer, S.M. (2001) Tool material testing for FSW of high-temperature alloys. Ibid.

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Suggested Citation

K. Okamoto, S. Hirano, M. Inagaki, S.H.C. Park, Yu.S. Sato, H. Kokawa (2003) Feasibility study of metallurgical and mechanical properties of friction stir welded stainless steels. The Paton Welding J., 10, 192-198.

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