Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 546, Issue -, Pages 119-128Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2012.03.039
Keywords
Multiaxial fatigue; Extruded AZ31B magnesium alloy
Categories
Funding
- US Department of Energy, Office of Basic Energy Sciences [DE-SC0002144]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- Natural Science Foundations of Zhejiang Province [Y107284]
Ask authors/readers for more resources
Multiaxial fatigue behavior of extruded AZ31B magnesium alloy was experimentally studied in ambient air under strain-controlled axial-torsion loading using tubular specimens. Four fully reversed loading paths were employed: tension-compression, pure torsion, proportional axial-torsion, and 90 degrees out-of-phase nonproportional axial-torsion. Tension-compression asymmetry in cyclic plastic deformation was observed for tension-compression and combined axial-torsion loading. For the same equivalent strain amplitude, the 90 degrees out-of-phase nonproportional loading path resulted in the shortest fatigue life and the proportional loading path produced the longest fatigue life. Two critical plane multiaxial fatigue models, namely, the modified Smith-Watson-Topper (SWT) model and the Jiang multiaxial fatigue criterion, were evaluated based on the experimentally obtained fatigue results. Both models were found to be able to correlate the fatigue experiments reasonably well. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available