The evaluation of wettability for AZ31B-H24 and AZ91C-F Mg alloys in friction stir welding

The evaluation of wettability for AZ31B-H24 and AZ91C-F Mg alloys in friction stir welding

In the present study, an investigation has been carried out on the friction stir welding (FSW) of two magnesium alloys. Hot-rolled and Die-casting plates of AZ type magnesium alloys were successfully joined by friction stir welding. AZ31B-H24 and AZ91C-F plates with the thickness of 4mm were used, a...

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Veröffentlicht in:Key engineering materials 2006-01, Vol.321-323, p.1723-1728
Hauptverfasser: Chang, Woong-Seong, Kim, Heung-Ju, Noh, Joong-Suk, Bang, Han-Sur
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Kim, Heung-Ju
Noh, Joong-Suk
Bang, Han-Sur
description In the present study, an investigation has been carried out on the friction stir welding (FSW) of two magnesium alloys. Hot-rolled and Die-casting plates of AZ type magnesium alloys were successfully joined by friction stir welding. AZ31B-H24 and AZ91C-F plates with the thickness of 4mm were used, and the microstructural development in stir zone (SZ) was investigated using optical and scanning electron microscopes. Hardness of SZ in AZ31B-H24 alloy has been slightly decreased due to the coarse structure. On the other hand, Hardness of SZ in AZ91C-F alloy has been remarkably increased due to very fine recrystallized grain structure. The result of EPMA showed Al Solid solution hardening by Solid solution of p intermetallic compound to a-Mg. While tensile strength of the FSWelded AZ31B-H24 alloy showed about 80% values compare to Base metal, AZ91C-F showed about 68% values due to strongly affected by formation of the intermetallic compounds, P-Al(12)M(17)
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title The evaluation of wettability for AZ31B-H24 and AZ91C-F Mg alloys in friction stir welding
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