Paper Title:
Reversion Treatment to Improve Bake Hardening Response of a Twin-Roll Cast 6016 Automotive Sheet
  Abstract

Heat-treatable Al-Mg-Si aluminum alloys for automotive body panel applications are shipped and formed in T4 temper while still formable and are subsequently given a bake cycle to increase strength by age hardening while the paint is cured. However, the hardening response during the rather short industrial paint-bake is impaired upon natural ageing after the solution treatment. It is thus essential to counteract the adverse effect of natural ageing on bake hardening. While this is often accomplished by an additional ageing cycle before the paint-bake treatment, reversion treatments ought to be used once substantial natural ageing has first taken place to improve the bake hardening response of a twin-roll cast 6016 sheet. The present work was undertaken to improve the paint bake response of a twin-roll cast 6016 sheet by employing reversion treatments before the paint-bake cycle. Reversion treatments between 200°C and 250°C was effective in improving the bake hardening response of the twin-roll cast 6016 sheet which, when processed without reversion, failed to meet in-service strength requirements with a rather poor bake hardening response of 35 MPa.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
345-350
DOI
10.4028/www.scientific.net/MSF.539-543.345
Citation
Y. Birol, "Reversion Treatment to Improve Bake Hardening Response of a Twin-Roll Cast 6016 Automotive Sheet", Materials Science Forum, Vols. 539-543, pp. 345-350, 2007
Online since
March 2007
Authors
Export
Price
$32.00
Share

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

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

Authors: A.I. Morley, M.W. Zandbergen, Alfred Cerezo, George D.W. Smith
Abstract:Hardness measurements and 3-dimensional atom probe analysis have been used to characterise the precipitation behaviour in two 6xxx series...
543
Authors: Marion Merklein, Julia Degner
Chapter 2: Equipments and Technologies of Sustainable Production
Abstract:In modern car bodies lightweight structures are used to achieve a reduction of energy consumption and CO2-emissions. One of the...
115
Authors: Hao Zhong, Bin Liao, Xiao Dong Wu, Ling Fei Cao, Paul A. Rometsch
Chapter 2: Contributed Papers
Abstract:In this work, Al-Mg-Si-Cu alloys for automotive body panels were designed and the related ageing behaviours were discussed in detail to help...
279