International Conference on Materials Sciences and Nanomaterials | |
Effect of Pre-Strain on the Fatigue Behavior of Extruded AZ31 Alloys | |
材料科学;物理学 | |
Wu, Yanjun^1 | |
Department of Mechanical Engineering, Nanjing Communications Institute of Technology, Nanjing, China^1 | |
关键词: Axial fatigue tests; AZ31 magnesium alloy; Fatigue behavior; Fatigue deformation; Hysteresis energies; Low cycle fatigues; Plastic deformation mechanisms; Tensile loading; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012005/pdf DOI : 10.1088/1757-899X/230/1/012005 |
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学科分类:材料科学(综合) | |
来源: IOP | |
【 摘 要 】
An attempt is made to rationalize the effect of pre-strain history on fatigue behaviors of AZ31 magnesium alloy. Axial fatigue tests were conducted in the extruded and pre-compressioned AZ31 alloy under low cycle total strain control fatigue conditions. The pre-strain process influences the plastic deformation mechanism activated during fatigue deformation, especially during tensile loading, by enhancing the activity of detwinning mechanism. The low-cycle fatigue lifetime of extruded AZ31 alloy can be enhanced by the pre-compression process. And the hysteresis energy was successfully used to predict the low-cycle fatigue lifetime.
【 预 览 】
Files | Size | Format | View |
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Effect of Pre-Strain on the Fatigue Behavior of Extruded AZ31 Alloys | 511KB | download |