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Effects of Welding and rotational speeds on the Microstructure and Hardness of Friction Stir Welded Single-Phase Brass

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

This study focuses on the effects of rotational and welding speeds on the microstructure and hardness of joints in friction stir welded single-phase brass. Welds were achieved under low heat input conditions at rotational and welding speeds of 400–800 r/min and 100–300 mm/min, respectively. In order to characterize the obtained welds, optical microscopy and Vickers hardness measurements were taken on the weld cross sections. According to the obtained results, increasing the welding speed and/or decreasing the rotational speed caused the grain size of the stir zone to decrease and, hence, improved the average hardness of this region. These results are discussed with respect to the interplay between the welding parameters and the peak temperature in the weld thermal cycle.

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Authors and Affiliations

  1. Materials Engineering Faculty, Sahand University of Technology, Tabriz, Iran

    Sajjad Emami & Tohid Saeid

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  1. Sajjad Emami
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  2. Tohid Saeid
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Correspondence to Tohid Saeid.

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Available online at http://link.springer.com/journal/40195

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Emami, S., Saeid, T. Effects of Welding and rotational speeds on the Microstructure and Hardness of Friction Stir Welded Single-Phase Brass. Acta Metall. Sin. (Engl. Lett.) 28, 766–771 (2015). https://doi.org/10.1007/s40195-015-0259-z

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  • DOI: https://doi.org/10.1007/s40195-015-0259-z

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