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Title: Effect of Deep Rolling on the Fatigue Behavior of Under-, Peak- and Over-Aged AA6110 at Room Temperature
Author: P. Juijerm, I. Altenberger, B. Scholtes
Source: Conf Proc: ICSP-9 (pg 302-307)
Publication year 2005
Document number: 2005101
Number of pages: 6
Abstract:
ABSTRACT
Cylindrical specimens of the age-hardened aluminium wrought alloy AA6110 (Al-Mg-Si-Cu) in different aging treatments (under-, peak- and over-aged) were deep rolled and
cyclically deformed under stress control. The cyclic deformation behavior and s/n curves of deep rolled and polished AA6110 in under-, peak- and over-aged conditions have
been investigated at room temperature. The properties of deep rolled regions, residual stresses and work hardening effects were characterized by X-ray diffraction methods.
Depth profiles of residual stresses, full width at half maximum (FWHM) values of the X-ray diffraction peaks and microhardness near the surface of the deep rolled condition
are presented. Residual stress relaxation at the surface was investigated during the fatigue test. Results of quasistatic tension tests of the non-surface treated specimens
are given to characterize the heat treatment state.
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