Effect of Ti on Corrosion of Cast AZ91 Magnesium Alloy

Abstract:

Article Preview

Ti addition to AZ91 alloy was been investigated with conventional casting. The Corrosion resistance of all the different Ti addition content alloy was studied in 3.5% NaCl solution through weight loss measurement in constant immersion conditions and potentiodynamic polarization experiments.The results show that addition of Ti with an amount of 0.1~0.8wt% the corrosion resistant of alloy was improved. In the case of AZ91-0.8Ti alloy had minimum corrosion rate value , AZ91-0.4Ti alloy had minimim corrosion current density. After Ti added into alloy, the morphology of β phases was changed, TiAl3 intermetallics appeared. The inhibiting effect of the β phases and TiAl3 intermetallics in the AZ91-Ti alloy predominated in the long period immersion testing, but during short interval of electrochemical testing galvanic corrosion effect in the AZ91-Ti alloy predominated.

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Edited by:

Zhongning Guo

Pages:

1457-1461

DOI:

10.4028/www.scientific.net/AMR.311-313.1457

Citation:

X. L. Ai et al., "Effect of Ti on Corrosion of Cast AZ91 Magnesium Alloy", Advanced Materials Research, Vols. 311-313, pp. 1457-1461, 2011

Online since:

August 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.