Paper Title:
Effect of Pre-Rolling Reduction on Intergranular Corrosion of Aluminum Alloy 2519A
  Abstract

The effect of pre-rolling reduction prior to ageing on the size and distribution of the precipitates, the width of precipitation free zones (PFZ) along grain boundaries and intergranular corrosion (IGC) of aluminum alloy 2519A were investigated by hardness tests, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The experimental results showed that the time for peak-age shortened when the reduction increased, which resulted in refining the precipitatates and distributing homogeneously within the grains and hence the IGC decreased. With increasing pre-rolling reduction, the PFZ along grain boundaries became narrower and precipitates changed from continuous chains to discrete distribution, which resulted in high IGC resistance.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
1117-1122
DOI
10.4028/www.scientific.net/MSF.546-549.1117
Citation
Y. Liu, X. M. Zhang, B. Liu, H. Z. Li, H. Gao, "Effect of Pre-Rolling Reduction on Intergranular Corrosion of Aluminum Alloy 2519A", Materials Science Forum, Vols. 546-549, pp. 1117-1122, 2007
Online since
May 2007
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$32.00
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