---
title: "High Temperature Corrosion and Degradation Mechanisms"
slug: "high-temperature-corrosion-and-degradation-mechanisms"
updated: 2026-10-27T23:12:43Z
published: 2026-10-27T23:12:43Z
canonical: "ims-handbook.cenosco.com/high-temperature-corrosion-and-degradation-mechanisms"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# High Temperature Corrosion and Degradation Mechanisms

This degradation module summarizes all high temperature corrosion and degradation mechanisms for which currently no specific S-RBI guidance is available. These include:

1. #### Corrosion
  1. Carburisation
  2. High Temperature Hydrogen Chloride (HCl) and Chorine Corrosion (Cl2)
  3. Metal Dusting
  4. Molten Salt Corrosion (Flue Ash Corrosion)
  5. Nitridation
  6. Oxi-Nitridation
2. #### High Temperature Material Degradation
  1. 475°C (885°F) Embrittlement
  2. Graphitisation
  3. Hydrogen Embrittlement
  4. Liquid Metal Cracking (LMC) also known as Liquid Metal Embrittlement (LME)
    1. Mercury Attack (of Aluminium)
  5. Reheat Cracking
  6. Short-term Overheating
  7. Sigma Phase Embrittlement (see also SR.16.10663 [1])
  8. Spheroidisation
  9. Strain Ageing

[PDF document](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/CEN.16.11753 - High Temperature Corrosion and Degradation(1).pdf?sv=2026-02-06&spr=https&st=2026-10-28T14%3A25%3A01Z&se=2026-10-28T15%3A25%3A01Z&sr=c&sp=r&sig=zI%2BU%2BSkYjPEp1hgSmx2ICY3GuDTUAAO8vGRNd98QJN0%3D)