Natural Passivity of Amorphous Fe_(40)Ni_(40)P_(14)B_6 and Fe_(54.6)Ni_(38)Si_(4.1)B_(2.3)V_1 Alloys

摘要

The natural passive films forrned on Fe40Ni40P14B6 and Fe54.6Ni38Si4.1B2.3V1 amorphous alloys long-term exposed in air have been studied by X-ray photoelectron spectroscopy （XPS） and Auger electron （including Ar+ ion depth profiling） spectroscopy （AES）. The following aspects have been investigated: （1） chemical states of the elements in the films. binding energies and the chemical shifts measured by XPSf （2） structure and composition of the films fand （3） thickness of the passive films determined by AES depth profiling and XPS analysis.