When corrosion failures occur, one is often faced with a decision to select cost-effective alternate materials that can be shown to be fully resistant to the environment and operating conditions. The material selection must also be known to be incapable of adversely affecting other system materials. Corrosion Resolutions provides this consultative service. We furnish detailed and thoroughly documented studies which provide recommended technical-economic material selections and we unambiguously define the bases of our recommendation(s).

In addition to performing evaluations of material corrosion resistance, Corrosion Resolutions also evaluates other significant factors that influence service life, e.g.:

• Component design
• Specification adequacy
• Shop fabrication and QA/QC elements
• Operational and maintenance practice impacts
• Unique environmental conditions

We also consider the selected material functional requirements, as necessary, e.g.:

• Strength under actual service conditions
• Toughness
• Dimensional stability
• Wear and abrasion properties
• Required physical properties
• Machinability

Once the considerations listed above have been evaluated, Corrosion Resolutions generates a tentative list of acceptable materials.  Final material selections are made after performing detailed evaluations of the system and component drawings, the fluid environment, the operating and lay-up conditions, etc. Additionally, all pertinent aspects are reviewed to ascertain that other complications will not arise as a result of the new material selection, e.g.:

• Galvanic corrosion of other component/system parts
• Hydriding due to inappropriate cathodic protection
• Hydrogen embrittlement cracking due to a short or long term exposure to an elevated operating temperature or due to an inappropriate application of cathodic protection
• Microbiologically influenced corrosion (MIC) susceptibility
  

Do not assume that in-kind material replacement will be sufficient based upon, e.g. 25 years of acceptable service life. One must be certain that the recent failure(s) did not largely occur in the past six months to two or three years of service life. This adverse result is commonplace and is generally caused by a sudden environmental change (often involving easily overlooked concentration increases in corrosive trace contaminants), a   recent microbiological infestation of the coolant with corrosive bacteria, an unintended - corrosion promoting change in layup procedure, etc.