826 光熱電気化学検出法と光音響法を用いた人工孔食の非破壊的映像化

概要

論文の詳細を見る
Artificially made pitting corrosions on the aluminum alloy plate were measured with a new Photothermal electrochemical (PE) detection scheme. The principle of PE detection is based on the accelaration of chemical etching by the use of laser irradiation. As specimens, artificial pitting corrosions were made by potentiostatic electrochemical method. The periodically modulated beam of an (Ar)^+ -ion laser is focused on the surface of an aluminum alloy plate, which is immersed in a 3.5% sodium chloride (NaCl) aqueous solution. The reconstructed images were compared those obtained with photoacoustic (PA) microscopic images. Nondestructive measurement of artificial pitting corrosions using these methods were carried out. Both PE and PA images showed a similar spatial resolution.
一般社団法人日本機械学会の論文
2003-08-05