[G] High Temperature Oxidation and Corrosion

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[392] Progress of Nodular Corrosion Products on β-NiAl Alloy under Na₂SO₄ Deposition

○Taisei Iwasaki¹, Mitsutoshi Ueda¹, Suzue Yoneda¹, Shigenari Hayashi¹, Kotaro Mizushino², Yasuo Matsunaga², Atsushi Tsuru² (1. Hokkaido Univ., 2. IHI)

Keywords:

High-temperature gas corrosion

It is known that nodular corrosion products form when Na₂SO₄ deposits in low-temperature regions of turbine blades. In this study, the process leading to nodule formation was clarified using a β-NiAl alloy that simulates a turbine blade coating.