Effect of Zn addition on microstructure and mechanical properties of an Al–Mg–Si alloy

Effect of Zn addition on microstructure and mechanical properties of an Al–Mg–Si alloy

In the present work, an Al–0.66Mg–0.85Si–0.2Cu alloy with Zn addition was investigated by electron back scattering diffraction(EBSD), high resolution electron microscopy(HREM), tensile and Erichsen tests. The mechanical properties of the alloy after pre-aging met the standards of sheet forming. Afte...

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Veröffentlicht in:Progress in natural science 2014-04, Vol.24 (2), p.97-100
Hauptverfasser: Yan, Lizhen, Zhang, Yongan, Li, Xiwu, Li, Zhihui, Wang, Feng, Liu, Hongwei, Xiong, Baiqing
Format: Artikel
Sprache:eng
Schlagworte:
alloy
Al–Mg–Si
Al–Mg–Si alloy
baking
Paint
Paint baking response
panels
response
Skin
Skin panels
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Zusammenfassung:In the present work, an Al–0.66Mg–0.85Si–0.2Cu alloy with Zn addition was investigated by electron back scattering diffraction(EBSD), high resolution electron microscopy(HREM), tensile and Erichsen tests. The mechanical properties of the alloy after pre-aging met the standards of sheet forming. After paint baking, the yield strength of the alloy was improved apparently. GP(Ⅱ) zones and η’phases were formed during aging process due to Zn addition. With the precipitation of GP zones, β″ phases, GP(Ⅱ) zones and η’phases, the alloys displayed excellent mechanical properties.
ISSN:1002-0071
DOI:10.1016/j.pnsc.2014.03.003