An introduction to the surface-sensitive electron spectroscopic techniques of Auger Electron Spectroscopy (AES), X-ray Photoelectron Spectroscopy (XPS or ESCA), High Resolution Electron Energy Loss Spectroscopy (EELS), and Ultraviolet Photoelectron Spectroscopy (UPS) is presented. These spectroscopies can provide chemical information which is not accessible using traditional corrosion measurement techniques. The extent to which qualitative chemical analysis, quantitative analysis, chemical bonding information, and molecular structural information can be obtained are discussed. Examples are given of the usefulness of these spectroscopies in the field of corrosion research.

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