Low-Cycle Fatigue Behavior of Al-4.5Cu-0.6Mg-0.3Si Alloy Containing 0.3%Ce

DOI

10.2991/meep-15.2016.29How to use a DOI?

Keywords

l-4.5Cu-0.6Mg-0.3Si-(0.3Ce) alloy; at treatment; low-cycle fatigue; fatigue fracture

Abstract

Fatigue test of Al-4.5Cu-0.6Mg-0.3Si-(0.3Ce) alloy with solution plus artificial aging treatment state was carried out on fatigue experimental machine. The low cycle fatigue behavior and fracture behavior of Al-4.5Cu-0.6Mg- 0.3Si-(0.3Ce) alloys were studied. The results show that Al- 4.5Cu-0.6Mg-0.3Si-(0.3Ce) alloy can exhibit the cyclic hardening, softening and stable cyclic stress response which mainly depends on the imposed total strain amplitudes. The addition of rare earth element Ce can effectively enhance the cyclic deformation resistance and low-cycle fatigue life of Al- 4.5Cu-0.6Mg-0.3Si alloy. For the Al-4.5Cu-0.6Mg-0.3Si (- 0.3Ce) alloy, the relation between plastic and reversals to failure as well as elastic strain amplitudes can be described respectively by Coffin-Manson and Basquin equations. The observations on fracture surfaces reveal that under lowcycle fatigue loading condition, the fatigue cracks initiate transgranular at the surface of fatigue samples and propagate transgranular for the Al-4.5Cu-0.6Mg-0.3Si- (0.3Ce) alloy.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - C. Wang
AU  - J. Wang
AU  - W.D. Zhang
AU  - X. Che
PY  - 2016/03
DA  - 2016/03
TI  - Low-Cycle Fatigue Behavior of Al-4.5Cu-0.6Mg-0.3Si Alloy Containing 0.3%Ce
BT  - Proceedings of the 2015 International Conference on Materials Chemistry and Environmental Protection (meep-15)
PB  - Atlantis Press
SP  - 102
EP  - 107
SN  - 2352-541X
UR  - https://doi.org/10.2991/meep-15.2016.29
DO  - 10.2991/meep-15.2016.29
ID  - Wang2016/03
ER  -