...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Corrosion science >THE PREPARATION, CHARACTERIZATION AND CORROSION BEHAVIOUR OF ION-IMPLANTED AND CERAMIC-COATED AISI 321 STEEL SAMPLES
【24h】

THE PREPARATION, CHARACTERIZATION AND CORROSION BEHAVIOUR OF ION-IMPLANTED AND CERAMIC-COATED AISI 321 STEEL SAMPLES

机译：离子注入和陶瓷涂层的AISI 321钢样品的制备，表征和腐蚀行为

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ion Beam Techniques were used to modify near-surface layers of austenitic stainless steel AISI 321 samples in order to improve their corrosion resistance. Mg-, Y- (implantation energy: 40 keV) and Al-implantation (implantation energy: 40, 60, 80 and 200 keV), as well as Dynamic Ion Mixing (DIM) (SiC deposition and mixing with 160 keV Xe~+ ions) and Sputtering (Si_3N_4 deposition with 15 keV Ar~+ ions) were applied for this purpose. The characterization of the samples was performed using Nuclear Reaction Analysis (NRA) and ~4He-Rutherford Backscattering Spectroscopy (RBS). The corrosion behaviour was investigated in 1N H_2SO_4 using cyclovoltammetry and potentiodynamic polarization. The values of the critical and passivation current density as well as of the corrosion, passivation and repassivation potentials, showed an increase of the corrosion resistance of the treated steel samples. This improvement is connected with the properties of the modified region (thickness, adhesion, formation of oxide films). The surface morphology and microstructure of the specimens before and after the corrosion experiments were investigated by Scanning Electron Microscopy (SEM).
机译：离子束技术用于修饰奥氏体不锈钢AISI 321样品的近表层，以提高其耐腐蚀性。 Mg-，Y-（注入能量：40 keV）和Al注入（注入能量：40、60、80和200 keV），以及动态离子混合（DIM）（SiC沉积并与160 keV Xe〜+混合）为此目的，进行了溅射和溅射（用15 keV Ar〜+离子沉积Si_3N_4）。使用核反应分析（NRA）和〜4He-卢瑟福背散射光谱（RBS）对样品进行表征。使用循环伏安法和电位动力学极化研究了在1N H_2SO_4中的腐蚀行为。临界和钝化电流密度的值以及腐蚀，钝化和再钝化电势的值表明，处理后的钢样品的耐腐蚀性提高了。这种改善与改性区域的特性（厚度，附着力，氧化膜的形成）有关。用扫描电子显微镜（SEM）研究了腐蚀实验前后样品的表面形貌和微观结构。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号