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首页> 外文期刊>Applied Surface Science >Impact of yttrium ion implantation on corrosion behavior of laser beam welded zircaloy-4 in sulfuric acid solution
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Impact of yttrium ion implantation on corrosion behavior of laser beam welded zircaloy-4 in sulfuric acid solution

机译：钇离子注入对激光焊接Zircaloy-4在硫酸溶液中腐蚀行为的影响

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In order to study the effect of yttrium ion implantation on the aqueous corrosion behavior of laser beam welded zircaloy-4 (LBWZr4), The butt weld joint of zircaloy-4 was made by means of a carbon dioxide laser, subsequently the LBWZr4 samples were implanted with yttriurn ion using a MEVVA source at an energy of 40 keV, with a fluence range from 1 x 10(16) to 4 x 10(16) ions/cm(2) at about 150 degrees C. Three-sweep potentiodynamic polarization measurement was employed to evaluate the aqueous corrosion behavior of yttrium-implanted LBWZr4 in a 0.5 M H2SO4 solution. Scanning electron microscopy (SEM) was used to examine the surface topographic character of the yttrium-implanted LBWZr4 before and after the potentiodynamic polarization measurement. The valences of the carbon, yttrium, and zirconium in the surface layer were analyzed by X-ray photoemission spectroscopy (XPS). It was found that a significant improvement was achieved in the aqueous corrosion resistance of yttrium-implanted LBWZr4 compared with that of the un-implanted LBWZr4. The mechanism of the corrosion resistance improvement of the yttrium-implanted LBWZr4 is probably due to the addition of the yttrium oxide dispersoid into the zirconium matrix. (c) 2005 Elsevier B.V. All rights reserved.
机译：为了研究钇离子注入对激光束焊接的Zircaloy-4（LBWZr4）的水腐蚀行为的影响，通过二氧化碳激光制备Zircaloy-4的对接焊缝，然后注入LBWZr4样品。在40 keV的能量下使用MEVVA离子源加入yttriurn离子，在大约150摄氏度下注量范围为1 x 10（16）到4 x 10（16）离子/ cm（2）。三扫描势电极化测量用于评估钇注入的LBWZr4在0.5 M H2SO4溶液中的水腐蚀行为。在电位动力学极化测量之前和之后，使用扫描电子显微镜（SEM）来检查注入钇的LBWZr4的表面形貌特征。通过X射线光发射光谱法（XPS）分析了表面层中的碳，钇和锆的化合价。发现与未植入的LBWZr4相比，植入钇的LBWZr4的耐水腐蚀性显着改善。注入钇的LBWZr4的耐腐蚀性提高的机理可能是由于在锆基体中添加了氧化钇分散质。 （c）2005 Elsevier B.V.保留所有权利。

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