Paper Title:
The Effect of Pre-Ageing on the Mechanical Properties of AA6061 Sheet Products
  Abstract

Various designated precipitation hardening and cold working have been employed to improve mechanical properties of aluminum–magnesium–silicon alloys. The aim of this study is to study how both high strength and excellent ductility could be achieved. Two main processes are competing to each other when the cold working is combined with precipitation hardening. They are dislocation annihilation during age treatment which improves ductility; and dislocation pinning by precipitates which increases strength of materials. In this paper, the mechanical properties of cold rolled AA6061 sheets in pre-aging, single and double aging conditions were compared. The different sequences of precipitation hardening and cold working were employed to achieve both high strength and excellent ductility. The results show that the amount of initial cold rolling and pre-aging may have negligible effect on the strength and hardness but significant effect on the ductility of alloy.

  Info
Periodical
Chapter
Chapter 1: Materials Behavior
Edited by
Wu Fan
Pages
337-342
DOI
10.4028/www.scientific.net/AMM.110-116.337
Citation
B. Mirzakhani, M. Mansourinejad, "The Effect of Pre-Ageing on the Mechanical Properties of AA6061 Sheet Products", Applied Mechanics and Materials, Vols. 110-116, pp. 337-342, 2012
Online since
October 2011
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Price
$32.00
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