Corrosion Failure Analysis

Corrosion of metallic materials is a major problem that affects many industries such as construction, aerospace, defense, petroleum, utility and related industries. Understanding of the mechanism and root cause of corrosion is one of the most necessary factors for effective control of corrosion.

Most corrosion problems are associated with localized corrosion in pits, crevices, stress corrosion cracks, fatigue cracks, or under biofilms. STEMart provides a thorough and detailed corrosion failure analysis to help clients identify the root cause of a corrosion failure and create/improve corrosion management programs to prevent future occurrences, therefore reducing maintenance, monitoring and failure cost.

Corrosion Types

• General corrosion
• Localized corrosion
  • Intergranular corrosion
  • Pitting corrosion
  • Crevice corrosion
  • Galvanic corrosion
  • Under-deposit corrosion
  • Weld corrosion
  • Stress corrosion cracking
  • Corrosion fatigue
  • Wear corrosion
  • Erosion corrosion
  • Hydrogen embrittlement
  • Microbial induced corrosion

Analysis Methods

• Preliminary visual examination: Photographic documentation of failed component is the cornerstone of the failure analysis.
• Non-destructive testing: Identify locations of leaking.
• Optical microscopy: Exame the fracture surface.
• Scanning Electron Microscopy associated with Energy Dispersive X-ray Spectroscopy (SEM-EDS): Identify the elements associated with the corrosion products.
• X-ray diffraction (XRD): Determine the crystalline species.

For more information about our corrosion failure analysis service, please contact us.