Effect of Pb addition on ageing behavior of AZ91 magnesium alloy

Srinivasan, A and Pillai, U T S and Pal, B C (2007) Effect of Pb addition on ageing behavior of AZ91 magnesium alloy. Materials Science and Engineering A, 452-453 . pp. 87-92.

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The ageing behavior of AZ91 alloy containing 2 wt.% lead is investigated. The results show that addition of Pb suppresses the discontinuous precipitation and thereby slows down the ageing kinetics. Even though the peak hardness obtained for both alloys is almost same, the peak hardness reaches after 2400 min for Pb added alloy against 900 min for the base alloy. The presence of Pb in solid solution might have inhibited the diffusion of Al and Mg atoms, which is essential for the formation, and growth of discontinuous precipitation in this alloy.

Item Type:Article
Official URL/DOI:http://dx.doi.org/10.1016/j.msea.2006.10.119
Uncontrolled Keywords:AZ91 magnesium alloy; Pb addition; Ageing behavior; Microstructure; DTA
Divisions:Metal Extraction and Forming
ID Code:186
Deposited On:26 Oct 2009 12:10
Last Modified:26 Oct 2009 12:10
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