Transmission Electron Microscopy Observations on the Precipitates in Al-Zn-Mg Based Sacrificial Anode Alloy

Jing Ling Ma; Jiu Ba Wen; Quan An Li; Jun Feng Li

doi:10.4028/www.scientific.net/MSF.704-705.989

Paper Titles

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Interfacial Friction of Ceramics at High Temperature Ring-Compression Test
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Numerical Simulation of Interfacial Debonding Crack in Particle Reinforced Composites
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Digital Image-Based Model for Concrete Fracturing Process Analysis
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Transmission Electron Microscopy Observations on the Precipitates in Al-Zn-Mg Based Sacrificial Anode Alloy
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Simulation Study of Hydraulic Fracturing Mechanism with Heterogeneous Material
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Effect of the Rotating Speed of Centrifugal Machine on Microstructures and Properties of Recycled WC_P/Fe-C Composites
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Effects of Cr-Mo Infiltration Source Cathode Different Mixing Proportion on the Thickness of Alloy Layer
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The Resistance of SiC/Al Layered Composite to Ballistic Impacting
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Transmission Electron Microscopy Observations on the Precipitates in Al-Zn-Mg Based Sacrificial Anode Alloy

Abstract:

nanoscale precipitates in the Al-Zn-In-Mg-Ti-Mn alloy were investigated by regular and high resolution transmission electron microscopy (TEM and HRTEM) and by selective area electron diffraction (SAED). The cast alloy contains the hexagonal structure MgZn₂ and the orthorhombic structure Al₆Mn precipitates, but after aged the precipitates of the cubic structure Mg₂Zn₁₁ were found. The Mg₂Zn₁₁precipitates can act as activation centre, make the alloy pitting. But the activation of Al₆Mn precipitates is very little.