日本金属学会2024年秋期(第175回)講演大会

Presentation information

一般講演

5.Materials Chemistry » Aqueous Corrosion and High Temperature Corrosion Performance

[G] Corrosion and Protection(2)

Fri. Sep 20, 2024 2:15 PM - 5:00 PM Room G (A201 2nd floor Building A Center for Education in Liberal Arts and Sciences)

Chair:Kotaro Doi

4:15 PM - 4:30 PM

[211] Effect of the properties of Ni passivate films formed in high temperature sulfuric acid solutions on pitting corrosion resistance

*Kaisei TANABE1, Masatoshi SAKITA2, Takumi HARUNA2 (1. Kansai Univ. Graduate student., 2. Kansai Univ.)

Keywords:Ni、不働態皮膜、孔食、昇温脱離ガス分析

高温H2SO4水溶液中でNi不働態皮膜を形成させ,皮膜形成時間や皮膜内の水の量が耐孔食性に及ぼす影響を調査した.その結果,皮膜中の水もしくは水酸化物の減少が耐孔食性の向上に関与していることがわかった.

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