Fundamental Study of Corrosion Control in Marine and Offshore Structures Using Radiation Induced Surface Activation (RISA)-2nd Report: Mechanism behind Stainless Steel Durability Due to RISA Against Crevice Control

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Other Title
  • 放射線誘起表面活性（ＲＩＳＡ）を用いた船舶・海洋構造物の耐食材防食技術に関する基礎研究―第２報　　ＲＩＳＡによるすきま腐食抑制メカニズム
  • ホウシャセン ユウキ ヒョウメン カッセイ RISA オ モチイタ センパク カイヨウ コウゾウブツ ノ タイショクザイ ボウショク ギジュツ ニ カンスル キソ ケンキュウ ダイ2ホウ RISA ニ ヨル スキマ フショク ヨクセイ メカニズム

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Abstract

This study examines a corrosion control technique for corrosion-resistant materials or of stainless steel. This employs an effect of Radiation Induced Surface Activation (RISA) . The experimental results revealed: (1) The mechanism behind the corrosion control proposed by the previous report was confirmed to be appropriate. This via tests that measured the amount of dissolved oxygen and iron ions, in the solution. (2) The corrosion control technique was confirmed to be useful for stainless steel with any kind of metal oxide film coating on the surface. (3) It was also shown to be useful even in actual seawater, due to biological effects, which is a far more severe environment for corrosion control than simple salt water. The corrosion control technique for corrosion-resistant material using RISA in seawater has therefore been shown to offer a significant potential for practical applications in naval architecture and marine structures.

Journal

  • Marine Engineering

    Marine Engineering 43 (5), 803-808, 2008

    The Japan Institute of Marine Engineering

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