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Title: Mechanical Surface Treatments on the High-Strength Wrought Magnesium Alloy AZ80
Author: Zhang, Lindemann, Kiefer and Leyens
Source: Conf Proc: ICSP-9 (pg 308-313)
Publication year 2005
Document number: 2005102
Number of pages: 6
Abstract:
ABSTRACT
The influence of shot peening and roller burnishing on the fatigue performance of high-strength wrought magnesium alloy AZ80 has been investigated. Shot peening was
conducted on smooth specimens by using different peening mediums (glass beads, Zirblast B30 and Zr-CeO2 (ZrO2 spherical particles stabilized by CeO2)) and different Almen
intensities (0.04 - 0.40 mmN). Roller burnishing was performed under different rolling forces from 50 - 400 N. The results show that both shot peening and roller burnishing
improve the fatigue life of AZ80 significantly. The improvement in fatigue strength by shot peening is in the range of 60-75% at optimum conditions for different peening
mediums. Compared to shot peening, roller burnishing can more effectively enhance the fatigue strength of AZ80, the improvement in fatigue strength by roller burnishing is
about 110% at the optimum condition.
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