Corrosion Resistance and Tensile Property of Al-Coated Mg-Li Alloy Produced by Hot Extrusion

Kaho Tomita; Kiyotaka Matsuura; Munekazu Ohno; Toko Tokunaga; Rui Zhi Wu; Mi Lin Zhang

doi:10.4028/www.scientific.net/KEM.641.69

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Research into the Impact of Magnesium Content in the AlSi7Mg Aluminum Cast Alloys on the Strength and Electrical Properties of the Material after Different Parameters of Heat Treatment Operations
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Corrosion Resistance and Tensile Property of Al-Coated Mg-Li Alloy Produced by Hot Extrusion
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 641Corrosion Resistance and Tensile Property of...

Corrosion Resistance and Tensile Property of Al-Coated Mg-Li Alloy Produced by Hot Extrusion

Abstract:

Al-coated Mg-Li alloy rods and plates having a homogeneous coating layer of 180μm in thickness have been produced by hot extrusion of Mg-Li alloy billets together with Al disks. The Al-coated Mg-Li alloy exhibits an excellent corrosion resistance in a weight-loss test with a 0.5 mass% HCl aqueous solution, and it has been revealed by a potentiometric corrosion test with a 3 mass% NaCl aqueous solution that the Al-coated Mg-Li alloy has the same electric potential as that of pure Al. Al-coated Mg-Li alloy sheets produced by hot forging of the extruded plates exhibits good elongation of 22 %, 40 % and 130 % at room temperature, 200 °C and 300 °C, respectively.

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Periodical:

Key Engineering Materials (Volume 641)

Pages:

69-80

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.641.69

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Online since:

April 2015

Authors:

Kaho Tomita, Kiyotaka Matsuura*, Munekazu Ohno, Toko Tokunaga, Rui Zhi Wu, Mi Lin Zhang

Keywords:

Aluminum (Al), Coating, Corrosion Resistance, Extrusion, Mechanical Property, Mg-Li Alloy

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