6061-T6铝合金疲劳曲线.pdf
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FATIGUE DESIGN CURVES FOR 6061-T6 ALUMINUM*
G. T. Yahr
Engineering Technology Division
Oak Ridge National Laboratory
Oak Ridge, Tennessee 37831-8051
ABSTRACT
A request has been made to the ASME Boiler and Pressure Vessel Committee that
6061-T6 aluminum be approved for use in the construction of Class 1 welded nuclear
vessels so it can be used for the pressure vessel of the Advanced Neutron Source research
reactor. Fatigue design curves with and without mean stress effects have been proposed.
A knock-down factor of two is applied to the design curve for evaluation of welds. The
basis of the curves is explained. The fatigue design curves are compared to fatigue data
from base metal and weldments.
DISCLAIMER
This report was prepared as an account of work sponsored by an agency of the United States
Government. Neither the United States Government nor any agency thereof, nor any of their
employees, makes any warranty, express or implied, or assumes any legal liability or responsi-
bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or
process disclosed, or represents that its use would not infringe privately owned rights. Refer-
ence herein to any specific commercial product, process, or service by trade name, trademark,
manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-
mendation, or favoring by the United States Government or any agency thereof. The views
and opinions of authors expressed herein do not necessarily state or reflect those of the
United States Government or any agency thereof.
I
Prepared by the OAK RIDGE NATIONAL LABORATORY, Oak Ridge, Tennessee 37831; managed by
MARTIN MARIETTA ENERGY SYSTEMS, INC., for the U.S. DEPARTMENT OF ENERGY under
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