Research On The High-cycle Fatigue Of AZ91D And Magnesium Alloy Add Mixed Rare Earth With Ce

This paper focus on our effects to contrastive research of fatigue property and related mechanical property of AZ91D and its counterpart –magnesium alloy which mixed with Ce. The result of research in content will facilitate the application of these two material in industry and also obtain an objective remark on property of these two materials above mentioned. First, we review the current status of magnesium alloys application in most related fields, especially in automotive industry and the gap of magnesium alloy application between other country and us. Second, the superiority on property and the potential of magnesium alloy relative to traditional material are also described in this paper. The content verified such a fact of fatigue property of materials in modern industrial application. Due to the such fact of fatigue failure up on various of factors such as the microstructure ,stress quality of material,the size of sample ,the using way and the affection of environment when material carry fatigue alternating stress, we have studied the high-cycle fatigue property of AZ91D magnesium alloy and the affection of Ce to AZ91D's fatigue property. Our research method is to carry out the experiment of mechanic property and high-cycle property of AZ91D and AZ91D with Ce by 2% respectively. We have studied extended property,micro-mechanism of fatigue fracture and the property of fatigue cracking by scanner,electron microscope,energy chart and XRD. In...