Microstructure, Mechanical Properties and Corrosion Behavior of Mg-1Zn-0.5Ca Alloy

Abstract:

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Mg-1Zn-0.5Ca alloy was prepared by casting technology. The as-cast alloy was solution treated at 470°C for 24 h and aged at 175°C for 0-50 h. The microstructure, mechanical properties and electrochemical corrosion behavior of the alloys were investigated. The results showed that the average grain size of the as-cast alloy was 120-150 μm, and the precipitated phases were distributed uniformly in α-Mg grain. The as-cast alloy showed good mechanical properties. The tensile strength was 186 MPa, and ductility was 23%. A typical age softening responses was obtained during the aging treatment. In the electrochemical corrosion tests, corrosion of the alloys is improved in Hank’s solution and 3.5wt% NaCl solution after the solution and aged treatment. However, the aged treated alloys showed the better electrochemical corrosion resistance.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

1735-1740

DOI:

10.4028/www.scientific.net/AMR.311-313.1735

Citation:

X. S. Li et al., "Microstructure, Mechanical Properties and Corrosion Behavior of Mg-1Zn-0.5Ca Alloy", Advanced Materials Research, Vols. 311-313, pp. 1735-1740, 2011

Online since:

August 2011

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Price:

$35.00

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