材料科学技术学报（英文版）
材料科學技術學報（英文版）
재료과학기술학보（영문판）
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
2005年
3期
361-366
,共6页
Ferritic steels%2.25Cr-1Mo steel%EFTEM%EELS%Ageing
Electron enregy loss spectroscopy (EELS) and energy filtering transmission electron microscopy (EFTEM) investigation on 2.25Cr-1Mo steel was carried out to understand the nature of evolution of secondary carbides. The filtered images obtained from two different ageing treatments indicate that the steel evolves to a more stable carbide namely M23C6 in comparison to M2C. Microchemical information was generated from EELS spectra. Suitable choice for estimating the microchemical state was discussed. To evaluate the behaviour of ageing an elemental ratio of Fe to Cr is employed.
