摘要
采用盐雾腐蚀和动电位扫描法研究稀土元素Nd对挤压态AZ31镁合金耐腐蚀性能的影响,并利用扫描电镜分析合金腐蚀试样的微观形貌,用X射线衍射衍射仪分析合金的物相组成和腐蚀产物。结果表明,Nd能够明显提高AZ31合金的耐腐蚀性能,且合金的腐蚀速率随Nd含量的不同而发生变化,盐雾、电化学腐蚀实验结果一致。
The effects of Nd on the corrosion resistant property of as-extruded AZ31 magnesium alloys were investigated by salt spray corrosion and a potentiodynamic scanning method. The micromorphology of the corroded samples of the alloys were studied by scanning electron microscope （SEM）, and the phase composition and corrosion products of the alloys were analyzed by X-ray diffractometer （XRD）. The results show that Nd addition can obviously improve the corrosion resistance of AZ31 magnesium alloys and the corrosion rate changes with the Nd addition. The result of salt spray corrosion is the same as that of potentiodynamic scanning.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2011年第1期156-160,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(50675148)
山西省重点实验室开放基金(2007031014)
山西省回国留学人员科研项目(2008-39)
关键词
AZ31镁合金
ND
耐腐蚀性能
盐雾腐蚀
动电位扫描
AZ31 magnesium alloy
Nd
corrosion resistant property
salt spray corrosion
potentiodynamic scanning
