Stainless steels such as STS 304, 316 and 630 are frequently used as shaft materials in small FRP fishing boats. If the shaft material is exposed to a severely corrosive environment such as seawater it is protected using appropriate methods. We investigated the use of impressed current cathodic protection to inhibit corrosion in shaft materials. In anodic polarization, passivity was remarkably more evident in STS316 stainless steel than in STS304 and STS630. The pitting potentials of 304, 316, and 630 stainless steels were 0.30, 0.323, and 0.260 V, respectively. The concentration polarization due to oxygen reduction and activation polarization due to hydrogen generation were evident in the cathodic polarization trends of all three. STS316 had the lowest current densities in all potential ranges, and STS630 had the highest. Tafel analysis showed that STS316 was the most noble of the three. In addition, the corrosion current density was lowest in STS316.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/10989 must be provided.

1. Characteristics evaluation for stress corrosion cracking and hydrogen embrittlement of Al-Mg alloy in seawater
2. Comparison of current-voltage characteristics between AFM modification and ICP etching in fabrication method of a single-channel superconducting flux flow transistor
3. Characterization and modelling of a superconducting flux flow transistor with a three-channel structure by an atomic force microscope method