[G] High Temperature Oxidation and Corrosion

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[389] Effect of Fe Dilution on the High-Temperature Corrosion Behavior of In625 Alloyunder Alkali Salt-Containing Synthetic Ash Deposits in Air

○Naoki Saegusa¹, Mitsutoshi Ueda¹, Suzue Yoneda¹, Shigenari Hayashi¹, Fumika Kanada², Hirotaka Sato² (1. Hokkaido Univ, 2. NIPPON STEEL ENGINEERING Co., LTD.)

Keywords:

High temperature corrosion

Waste-to-energy boiler superheater tubes suffer severe high-temperature corrosion due to corrosive gases and incineration ash. Although Inconel 625 In625overlay improves corrosion resistance, Fe dilution reduces its performance. This study investigated the effect of Fe dilution on the corrosion behavior of In625.