摘要
为了研究自离子轰击对纯锆耐蚀性的影响,用MEVVA源对纯锫样品进行了1×1015至2×1017ions/cm2的自离子轰击,注入温度为170℃,加速电压为50 kV.用X射线光电子谱(XPS)对注入表面各元素进行价态分析;用Auger电子能谱(AES)分析氧化膜厚度.三次极化测量用来评价轰击样品在1 mol/L H2SO4溶液中的耐蚀性.用掠射X射线衍射(GAXRD)分析自离子轰击造成的氧化膜相转变.研究表明: 5×1016 Zr ions/cm2自离子轰击样品的耐蚀性最好.对自离子轰击纯锆的腐蚀行为机理进行了讨论.
In order to investigate the affect of self-ion bombardment on the aqueous corrosion behavior of zirconium, the specimens were implanted by zirconium ions with a fluence range from 1 X 10(15) to 2x10(17) ions/cm(2) at about 170 degrees C, using a MEVVA source at an extractation voltage of 50 kV. The valence of the surface layer was analyzed by X-ray photoemission spectroscopy (XPS); the thickness of the oxide film was measured by Auger electron spectroscopy (AES). Three-sweep potentiodynamic polarization measurement was used to value the aqueous corrosion resistance of implanted zirconium in 1 mol/L H2SO4 solution. Glancing angle X-ray diffraction (GAXRD) was employed to determine the phase transformation due to the self-ion implantation in the oxide films. It was found that the aqueous corrosion resistance of zirconium implanted with 5 x 10(16) Zr ions/cm(2) is the best in all the samples. Finally, the mechanism of the corrosion behavior of the self-ion implanted zirconium is discussed.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第2期185-190,共6页
Acta Metallurgica Sinica
基金
国家重点基础研究发展规划资助项目G2000067207-1
关键词
纯锆
耐蚀性
自离子轰击
动电位极化
相转变
Zr
corrosion resistance
self-ion implantation
potentiodynamic polarization
phase transformation
