Date:

2025-04-30

Title of Paper:

Investigation on early formation and evolution of oxide scales on ferritic–martensitic steels in supercritical water

Journal:

Corrosion Science

Summary:

Early oxidation characteristics of ferritic-martensitic steel T91 in supercritical water (SCW) from 1 h to 120 h
were investigated. Relative to austenitic steels, occurrence of each oxidation stage for T91 was delayed. Both
inner Cr-rich layer and outer magnetite layer formed even after a 1h-exposure at 540 °C, implying their almost
simultaneous formations. Several assembled-pore lines were observed in the inner layer. Abundant pores accumulated at the boundary between the inner/outer oxide layers in steam, while mainly along the inner/diffusion layer interface in SCW, due to lower difference between iron diffusion through the inner and outer layers
for the later.

Co-author:

Yanhui Li, Shuzhong Wang, Panpan Sun, Jianqiao Yang, Xingying Tang, Donghai Xu

Volume:

135(1)

Page Number:

139-146

Translation or Not:

No

Date of Publication:

2018-05-16