Open AccessIn situ observation of pitting of stainless steel by XAFS
Author(s) -
Kimura Masao,
Kaneko Michio,
Suzuki Tamaki
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500017192
Subject(s) - x ray absorption fine structure , in situ , materials science , metal , electrochemistry , absorption (acoustics) , ion , pitting corrosion , interface (matter) , metallurgy , analytical chemistry (journal) , corrosion , chemistry , electrode , composite material , spectroscopy , environmental chemistry , physics , organic chemistry , quantum mechanics , capillary number , capillary action
An in situ observation technique by XAFS (X‐ray Absorption Fine Structures) has been developed for observation of metal corrosion. XAFS spectra were obtained with a special electrochemical cell to elucidate pitting: change of concentrations and structures of ions near the interface of solution and metal. It has been successfully shown that the concentrations of Cr and Br are linearly dependent on the distance from the interface. Also, salt formation at the interface and the hydrolysis reaction far from the interface are indicated.