Microstructural evaluation of oxide layers formed on Fe-22Cr-6Al metallic foam by pre-oxidization

作者：Lee Jae Young; Kim Hyung Giun; Choi Mi Ri; Lee Chang Woo; Park Man Ho; Kim Ki Hyun; Lim Sung Hwan^*

来源：Applied Surface Science, 2014, 293: 255-258.

DOI：10.1016/j.apsusc.2013.12.144

• FeCrAl
• Foams
• Oxides
• Oxidation kinetics
• Transmission electron microscopy

Three types of oxide layers Al2O3, Al1.98Cr0.02O3, and AlFeO3 phases on the surface of Fe-22Cr-6Al(FeCrAl) foam during pre-oxidation were characterized by means of transmission electron microscopy (TEM). The growth rate of each oxide layer was investigated using measurement of total weight gain. The Al2O3 layer mainly affected the growth rate of the total oxide layer, and it hindered the diffusion of Fe and Cr atoms from the matrix to the oxide layers.

• 出版日期2014-2-28