<p>This paper presents a comprehensive analysis of amine-induced corrosion in absorbers used in post-combustion carbon capture units. Amine-based solvents, particularly monoethanolamine (MEA), are widely used for CO₂ removal but are prone to degradation under absorber operating conditions. The study examines the corrosive environment created by amine degradation products, heat-stable salts, oxygen ingress, high temperature, and uneven flow distribution. Special attention is given to how localized turbulence, dead zones, and vapor–liquid interface conditions accelerate degradation of carbon-steel and stainless-steel materials. Drawing from literature, field experience, and documented industrial failures, the paper categorizes corrosion damage mechanisms such as under-deposit corrosion, pitting, erosion–corrosion, and stress corrosion cracking. Several real-world case studies are presented, highlighting premature absorber wall thinning, localized attack at liquid–vapor interfaces, and weld failure due to chloride-assisted stress corrosion cracking in stainless steels. Mitigation strategies are explored, including solvent quality control, heat-stable salt removal, oxygen minimization, improved flow distribution, protective coatings, and material upgrades to duplex stainless steels or nickel-based alloys. The paper concludes with recommendations to enhance absorber reliability and extend service life, recognizing the critical role of absorber performance in the economic and environmental viability of carbon capture projects.</p>