1. Material fractures can be intergranular fracture or a transgranular fracture. 2. Intergranular cracking is likely to occur if there is a hostile environmental influence.3. Intergranular corrosion is a concern especially for alloys with high content of copper.4. Some austenitic stainless steels and nickel-based alloys are prone to intergranular corrosion. 5. In addition, there are several other processes that can lead to intergranular fracture: 6. However, a crack that propagates along the grain boundaries is termed an intergranular fracture. 7. Certain alloys when exposed to a temperature characterized as a sensitizing temperature become particularly susceptible to intergranular corrosion. 8. Referred to as dissimilar-metal corrosion, this process can occur as exfoliation or as intergranular corrosion. 9. This modification is vital to explaining the segregation behavior that results in the intergranular failures of engineering materials. 10. The groundwater then travels through a network of cracks and fissure openings ranging from intergranular spaces to large caves.
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