Combined Kelvin probe force microscopy and secondary ion mass spectrometry for hydrogen detection in corroded 2024 aluminium alloy
Combined Kelvin probe force microscopy and secondary ion mass spectrometry for hydrogen detection in corroded 2024 aluminium alloy
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结合开尔文探针力显微镜和二次离子质谱法检测腐蚀的 2024 铝合金中的氢
DOI：
10.1016/j.electacta.2013.02.063
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发表时间：
2013
影响因子：
6.6
通讯作者：
C. Blanc
中科院分区：
文献类型：
--
作者：
C. Larignon;J. Alexis;E. Andrieu;L. Lacroix;G. Odemer;C. Blanc
验证了开尔文探针力显微镜（KFM）检测和定位腐蚀2024铝合金中氢的能力。在对2024合金进行循环腐蚀试验后，在1 M NaCl溶液中浸泡，然后暴露于- 20°C的空气中，将氢气引入合金内部。扫描电镜、二次离子质谱和KFM的结合表明，晶粒和亚晶粒边界是氢的短路扩散的首选途径，但当暴露在室温空气中24小时时，它们也是氢在晶格中扩散的源，距离可达10微米，并且脱附不可忽略。
The capability of Kelvin probe force microscopy (KFM) to detect and locate hydrogen in corroded 2024 aluminium alloy was demonstrated. Hydrogen was introduced inside the 2024 alloy following a cyclic corrosion test consisting of cycles of immersion in 1 M NaCl solution followed by exposure to air at −20 °C. The combination of scanning electron microscopy, secondary ion mass spectrometry and KFM demonstrated that the grain and subgrain boundaries were preferential pathways for the short-circuit diffusion of hydrogen but also acted as a source of hydrogen diffusion in the lattice over distances of up to ten microns with non-negligible desorption when exposed to air at room temperature for 24 h.
扫描开尔文探针力显微镜原位观察铝合金丝状腐蚀中活性头与金属间颗粒之间的直接相互作用
影响因子：
6.6
作者：
C. Senöz;M. Rohwerder
通讯作者：
M. Rohwerder
影响因子：
6.6
作者：
Cook, A. B.;Barrett, Z.;Williams, G.
通讯作者：
Williams, G.