Exam Question
Explain the following terms and give examples of where each condition might
(a) Stress Corrosion cracking (6)
(b) Creep cracking (5)
(c) Corrosion fatigue. (5)
Class 4 (4th Engineer)
MEKG
📅 Sep 2025
Reference Answer
### (a) Stress Corrosion Cracking (SCC) (6 Marks)
**Definition:**
Stress Corrosion Cracking (SCC) is a material failure mechanism caused by the simultaneous and synergistic interaction of three critical factors:
1. **A Susceptible Material:** Not all materials are prone to SCC in all environments. Specific material-environment pairs are known to cause issues (e.g., austenitic stainless steel in chloride environments).
**Definition:**
Stress Corrosion Cracking (SCC) is a material failure mechanism caused by the simultaneous and synergistic interaction of three critical factors:
1. **A Susceptible Material:** Not all materials are prone to SCC in all environments. Specific material-environment pairs are known to cause issues (e.g., austenitic stainless steel in chloride environments).
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.
Prepare on Android — MeoMock on Google Play