Paper Title:

Effect of Rolling Process on the Microstructure of AlMgSi Alloy

Periodical Advanced Materials Research (Volumes 399 - 401)
Main Theme New Materials, Applications and Processes
Edited by Jianmin Zeng, Yun-Hae Kim and Yanfeng Chen
Pages 40-45
DOI 10.4028/www.scientific.net/AMR.399-401.40
Citation He Liang Li et al., 2011, Advanced Materials Research, 399-401, 40
Online since November, 2011
Authors He Liang Li, Xiao Guang Yuan, Ming Fu Wu, Hong Jun Huang
Keywords Al-Mg-Si Alloys, Deformation Amount, Rolling Process
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Abstract

In this paper, a AlMgSi alloy for sheet materials was designed on the base of 6111 aluminum alloy, the alloy sheet was fabricated by the rolling process combination of hot and cold rolling, the effect of rolling process on the microstructure of alloy was studied. The results show that different 1st rolling pass reductions of 13%, 33% and 47%, alloy microstructure changes obviously. With the increasing of 1st rolling pass reductions, the re-crystallization structure grow in quantity, re-crystallization grain more and more dense, flat, uniform, and the second phase particles are also more small, distributes more uniform. When the first cold rolled reduction is 47%, degree of grain refinement, the second phase particles fragmentation and tissue uniformity in rolling 3st state are obviously superior to the 1st state and 2st states. The deformation inhomogeneity can be overcome by improving the first reduction rate, the re-crystallization process of synchronization between surface layer and the center layer is better.