Friction stir welding – pluses and minuses

Frolov, V. A.; Ivanyukhin, A.N.; Sabantsev, A N; Didenko, S.A.; Konkevich, V. Yu.; Belotserkovets, V. V.

doi:10.1080/09507110903399224

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Cited by 7 publications

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“…[1][2][3]. With it, it is possible to obtain high-quality welds out of many metals and alloys, even unweldable high-strength 7xxx-series ones [4][5][6]. However, the nature of FSW joints property enhancement, caused by specific structurization of the welding materials in the nugget and thermo-mechanically affected zones (NZ and TMAZ), is not still so clear despite an activities in many laboratories around the world.…”

Section: Introductionmentioning

confidence: 99%

Structure and Hardness of Friction Stir Welds out of High-Strength Non-Heat Hardenable Cast and Wrought Aluminum Alloys

Ilyasov

Predko

Avtokratova

et al. 2015

MSF

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Optical and electron microscopy analyses of friction stir welds out of commercial cast and deformable Al-Mg-x alloys have shown the typical onion-like macrostructure consisting of alternating layers of both the alloys. Maximum microhardness of ~120 Hv has been found in the center of the welds owing to strong grain refinement and exceeding values for both the initial alloys. Mechanisms of structure transformations, as well as hardness changes in the nugget and thermo-mechanically affected zones are discussed.

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