発はっ錆せい

noun

rusting; onset of rust

Technical or formal term for the process of rust formation, often used in engineering or materials contexts.

• この金きん属ぞくは発はっ錆せいしやすいので、防ぼう錆せい処しょ理りが必ひつ要ようです。

  This metal rusts easily, so anti-rust treatment is necessary.

• 発はっ錆せいのメカニズムを研けん究きゅうしています。

  We are researching the mechanism of rust formation.