Ratcheting and low-cycle fatigue characterizations of extruded AZ31B Mg alloy with and without corrosive environment
Source abstract
Abstract
Abstract The ratcheting and low-cycle fatigue behaviors of extruded AZ31B in air and in PBS are investigated. To realize the corrosive environment and monitor the axial strain of AZ31B tested in PBS, a miniaturized chamber attachment is self-designed and an eddy current sensor is employed. Stress strain loop and strain evolution under fully symmetric and asymmetric stress cycling with and without corrosive environment are presented. The influences of twinning and detwinning, ratcheting fatigue interaction and fatigue corrosion are all discussed. Considering the effect of ratcheting and corrosion environment on damage evolution of extruded AZ31B, a modified Ellyn’s model is presented and the results agree with the experimental observations very well.
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Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Aluminum Alloys Composites Properties · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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